Welcome to Pulp & Paper Research Division (PPRD)

Pulp and Paper Research Division (PPRD) is one of the oldest divisions in BCSIR Laboratories Dhaka which plays a crucial role in the development of pulping technology for the pulp and paper industries in Bangladesh from its beginning. Many efforts have been given over the past decades to find out high yield biomass for pulp production as well as easy propagation for forestry. This research division is mandated to utilize locally available bioresouces in producing pulp, paper and chemicals. PPRD is giving full effort in reducing green house gas emission through the development of biobased products. Scientists of PPRD are going to develop a green pulping process for nonwood agricultural residues. Moreover, PPRD is developing human resources through supervising PhD and MS students of different universities of Bangladesh.

 

 

Achievements and Activities :

Paper Published

  • Jahan, M. S., Haris, F., Rahman, M. M., Samaddar, P. R., & Sutradhar, S. “Potassium hydroxide pulping of rice straw in biorefinery initiatives”. Bioresource Technology, 216, 445–450, 2016.
  • Ahsan, L. Sarwar Jahan, M. Ni, Y. G. Yang. “Adsorption of acetic acid from pre-hydrolysis liquor from kraft-based dissolving pulp production using amine-based resin”, J- For 5(3), 20-26, 2016.
  • Jahan, M. Sarwar, Rajesh Chandra Deb, M. Mostafizur Rahaman, A. Quaiyyum, “Dissolving pulp from white press cuttings”. Tappi Journal. 15(4), 377-382, 2016.
  • Jahan, M. Sarwar, Uddin, M. N., Rahman, A., Rahman, M. M., & Aminb, M. N. “Soda pulping of umbrella palm grass (Cyperus flabettiformic)”. Journal of Bioresources and Bioproducts, 1(2), 85-91, 2016.
  • Jahan, M. Sarwar, Jannatun Nayeem M. Mostafizur Rahman, Marium Islam, and M. A. Quaiyyum. "Chemical characteristics of ribbon retted jute and its effect on pulping and papermaking properties." Industrial Crops and Products, 84: 116-120, 2016.
  • Sun, G., Zhang, D., An, X., Jahan, M. Sarwar, Zhou, J., Ni, Y. “A Case Study for Integrated Forest Biorefinery: Recovery of Manool from Evaporator Condensate of a Kraft Pulp Mill”. Separation and Purification Technology. 165(13):27–31,
  • Jahan, M. Sarwar, Rahman, M. M., Sarkar, M. “Upgrading old corrugated cardboard (OCC) to dissolving pulp”. Cellulose, 23(3), 2039-2047,
  • Jahan, M. Sarwar, Sarkar, M. Rahman, M. M., “Mixed Cooking of Bamboo with Hardwood”. Accepted in Cellulose Chemistry Technology, 2016
  • Jahan, M. Sarwar, Azharul Islam, M. Mostafizur Rahman, Jannatun Nayeem, and Shamim Ahmed, “Steam and hot water prehydrolysis of bamboo and its effect on residual lignin structure and pulping”. Accepted in Cellulose Chemistry Technology,  
  • Sarwar Jahan, Mamon Sarkar, Mostafizur Rahman, M. “Sodium carbonate pre-extraction of Trema orientalis in the production of paper grade pulp”. Drewno 48(195): 69-78, 2015
  • Sarwar Jahan, Alam, D., Rahman, M. M., & Quaiyyum, M. A. “Isolation and characterization of lignin from okra (Abelmoschus esculentus) fibre and stick”. Bangladesh Journal of Scientific and Industrial Research, 50(4), 257-262, 2015 .
  • Sarwar Jahan, Shrikanta Sutradhar, Mostafizur Rahman M. and Quaiyyum, M. A. “Fractionation of rice straw for producing dissolving pulp in biorefinery concept”. Nordic Pulp and Paper Res. J. 30(4), 562-567, 2015.
  • Al-Maruf, A. Sarwar Jahan, “Pulping and papermaking potential of six mangrove species in Bangladesh”. Journal of the Indian Academy of Wood Science, 12(2), 116-21, 2015.
  • Sarwar Jahan, M. Sarkar, M. & Rahman, M. M. Sodium carbonate pre-extraction of bamboo prior to soda-anthraquinone pulping. Biomass Conversion and Biorefinery, 5(4), 441-423, 2015.
  • Matin, M., Rahaman, M. M., Nayeem, J., Sarkar, , Sarwar Jahan, M.. “Dissolving pulp from jute stick”. Carbohydrate Polymers 125, 44-48, 2015.
  • Liu, H Hu, Sarwar Jahan, M. Ni, Y. “Improvement of furfural production from concentrated pre-hydrolysis liquor (PHL) of a kraft-based hardwood dissolving pulp production process”. J. Wood Chem. Technol. 35(4) 260-269, 2015.

 

Scientists pursuing M.S/M.Phil/ PhD Courses in home or abroad

  1. Mohammad Nashir Uddin, SSO, PhD course, Jahangirnagar University, Savar, Dhaka
  2. Mohammad Mustafizur Rahman, SSO, PhD course, University of Pardubice, Czech Republic.

Guidance to research Work ( PhD/M.Phill /M.S/NCST & BCSIR Fellow) :

Sl. No

Title of research

Research Category

Name of the Student

Name of the Institution

Name of Supervisors

1

Preparation and characterization of lignin based phenol formaldehyde resin for plywood adhesive

BCSIR fellow

Shrikanta Sutradhar

Applied Chemistry and Chemical Engineering, University of Dhaka

Dr. M Sarwar Jahan

2

Evaluation of pulp and paper making properties of dhaincha (Sesbania Aculeate)

BCSIR fellow

Mamun Sarker

Department of Chemistry, Jagannath University

Dr. M Sarwar Jahan

3

Imrovement of Pulp and Bleaching by Chlorine Dioxide (ClO2) splitting

MSc

Mohammad Milan Uddin

Department of Chemistry, Dhaka College

Dr. M Sarwar Jahan

4

Potassium hydroxide pulping of rice straw in biorefinery initiatives

MSc

 

Fahmida Haris

Department of Chemistry, Eden Girls College.

 

Dr. M Sarwar Jahan

5

Potassium hydroxide pulping of saccharum sponteneum (kash)

MSc

Tawhida Akter

 

Department of Chemistry, Eden Girls College.

 

Dr. M Sarwar Jahan

 

Participation in training / Seminar/ Symposium/ Workshop/ Conference :

  • M Sarwar Jahan participated in Training Workshop on Technopreneurship for South Countries 5 - 9 October 2015, Kuala Lumpur, Malaysia
  • ISTIC-TWAS Competition “Successful Innovation in Science and Technology in Developing Countries” 10 - 11 October 2015, Kuala Lumpur, Malaysia
  • Mohammad Nashir Uddin participated to the “International Conference on Mathematical Modeling” on 29-30 December, 2015 organized by  COMSATS, ISESCO and National Mathematical Centre (NMC), Abuja, Nigeria

 

Award:  

  • 3rd Prize in Successful Innovation in Science and Technology in Developing Countries

 

Number of Analytical (Ad-Hoc) Problem Solved:  

Name of the Division

Routine type

Research Type

Total

Pulp & Paper Research Division

 

 

153

 

List of Pictures for each Division:

  • Product Picture ( Raw picture with HD)
  • Major Instruments ( Raw picture with HD)

 

Summary : Jannatun Nayeem started her research career in Pulp and Paper Research Division, Bangladesh Council of Scientific & Industrial Research (BCSIR) in early 2012. From then she mainly works in the field of lignocellulosic conversion, Cellulose chemistry, Bio-refinery. 

Research interest:

 Non wood Pulping, lignocellulosic conversion, Cellulose chemistry, Biorefinery  


Name: Jannatun Nayeem
Designation:
Scientific Officer
E-mail : This email address is being protected from spambots. You need JavaScript enabled to view it.

 

Research ID ORCID ID Google Scholar Research gate

 

 

Summary: Dr. Jahan is a leading scientist in the area of pulp and paper science and technologyHe received his M.Sc. in Applied chemistry from the University of Rajshahi and joined at the Pulp and Paper Research Division of BCSIR as a Scientific Officer in 1992. He received his Ph.D. degree on jute pulping from the same university. His main research focus is on the integration of pulp production with biorefinery and utilization of dissolved biomass to replace fossil fuel. Dr. Jahan has experience in supervising graduate student’s research work and to lead national and international research projects. He has post-doctoral research experiences from renowned institutes of Canada, China and South Korea and published more than 160 research articles in international peer review journals. Currently, he is acting as an Executive Editor of the Journal of Bioresources and Bioproducts, UNB, Canada and Associate Editor of Bangladesh Journal of Scientific and Industrial Research.

    Research interest:

  1. High purity dissolving pulp from jute cutting and Caddis
  2. Potassium hydroxide pulping of agricultural wastes in biorefinery initiative
  3. Pulping and bleaching of Akashmoni (Acacia auriculiformis) for papermaking

Name: Dr. Md. Sarwar Jahan
Designation:
Chief Scientific Officer 
E-mail :This email address is being protected from spambots. You need JavaScript enabled to view it.
This email address is being protected from spambots. You need JavaScript enabled to view it.

Research ID ORCID ID Google Scholar Research gate

Welcome to Pulp & Paper Research Division (PPRD)

Pulp and Paper Research Division (PPRD) is one of the oldest divisions in BCSIR Laboratories Dhaka which plays a crucial role in the development of pulping technology for the pulp and paper industries in Bangladesh from its beginning. Many efforts have been given over the past decades to find out high yield biomass for pulp production as well as easy propagation for forestry. This research division is mandated to utilize locally available bioresouces in producing pulp, paper and chemicals. PPRD is giving full effort in reducing green house gas emission through the development of biobased products. Scientists of PPRD are going to develop a green pulping process for nonwood agricultural residues. Moreover, PPRD is developing human resources through supervising PhD and MS students of different universities of Bangladesh.

 

R&D Project

Title of the project: Upgradation of Old Corrugated Cardboard (OCC) into dissolving pulp

Project Leader: Dr. Md. Sarwar Jahan, P.S.O,

Research Associates: Md. Mostafizur Rahman, S.S.O

Introduction

Post-use corrugated packaging material is commonly known as “cardboard”, while it is typically referred to as OCC or Old Corrugated Cardboard/ Containers to industry insiders. Many studies have been published on the OCC recycling in order to improve papermaking properties. Dissolving-grade pulps are high-valued, intensively bleached pulps with high cellulose content, low hemicelluloses, lignin content, extractive and mineral content. There is no report available on conversion of OCC into dissolving pulp.

Objective

  • To delignify OCC by formic acid (FA) treatment
  • To extract hemicelluloses from FA treated OCC pulp by alkali
  • To bleach alkali treated OCC pulp by D0EpD1 bleaching sequences

Progress achieved

Delignification and pentosan dissolution of OCC pulp was carried out with formic acid (FA) followed by alkaline extraction.  The kappa number of the initial OCC pulp was 41.4, which was decreased to 18.0 after 3.5 h of formic acid treatment. At this point pentosan content in the formic acid treated pulp was 6.20% that was further decreased to 3.92% after alkaline extraction with 8% NaOH for 120 min at 90oC. Alkaline extracted pulp was bleached to 85% brightness by D0EpD1EpD2 bleaching sequences where α-cellulose content was 94.7%. The recovered lignin and hemicellulosic sugars from the FA spent liquor were 4.3% and 12.7%, respectively. The lignin was characterized with lower methoxyl and higher phenolic hydroxyl groups.

Fig.1. Flow diagram of OCC upgradation into dissolving pulp in a biorefinery concept.

 

Title of the project: Potassium hydroxide pulping of agricultural wastes in biorefinery initiative

Project Leader: Dr. Md. Sarwar Jahan, P.S.O,

Research Associates: Md. Mostafizur Rahman, S.S.O

Introduction

Renewable source of energy and consumer products are required to maintain sustainable development in the modern world. One of the renewable resources is lignocelluloses. Bangladesh is an agricultural country, which generates substantial amount of agricultural wastes those can be use as raw materials for pulp and energy. The main problem of agricultural wastes pulping black liquor recovery that creates environmental pollution. To overcome these problems of agricultural waste pulping new technologies based on potassium hydroxide (KOH) have been proposed.

 

 

Objective

  • Characterization of agricultural wastes
  • Pulping of agricultural wastes by potassium hydroxide (KOH) and soda (NaOH) Processes with varying alkali charge
  • Bleaching of the produced pulps D0EpD1 bleaching sequences
  • Evaluation of papermaking properties
  • Characterization of black liquor generated from the KOH pulping, and
  • Use in soil amendment and its effect on the growth of Red amaranthus.

Progress achieved

Pulping and bleaching response of KOH process were comparable to NaOH process. The papermaking properties of KOH pulp from agricultural wastes were slightly better than those of corresponding NaOH pulp. Potassium based pulping black liquor was also applied in soil amendment and found benifical on soil properties and the growth of Red amaranthus. Compared to non-amended control soil, black liquor increased Red amaranthus growth by 2.7 times.

 

 

Fig. 2. Flow diagram of KOH pulping of agricultural wastes in biorefinery concept.

 

Title of the project: Fractionation of rice straw for producing dissolving pulp, biochemicals and separation of silica

Project Leader: Dr. Md. Sarwar Jahan, P.S.O

Research Associates: Md. Mostafizur Rahman, S.S.O

Introduction

Bangladesh is an agriculture-based country. Each year a huge amount of agricultural residues are found as leftover in Bangladesh. Rice straw is the main agricultural residue in Bangladesh. It can be a good source for fibrous raw material. Rice straw is easier to delignify in alkaline pulping, but difficult in processing due to high fines and silica contents. This paper describes an alternative method of separation and fractionation of silica and lignocellulosic components in producing dissolving pulp.

 

Objective

  • Delignification of rice straw by formic acid/acetic acid/water (FA/AA/H2O) mixture
  • Dissolution of hemicelluloses and silica from the pulp fiber by alkaline extraction
  • Bleaching by D0EpD1 sequences
  • Separation of dissolved silica from the alkaline extracted liquor by precipitation and separation of lignin and sugars from the spent liquor.

 

Progress achieved

Rice straw was treated with acetic acid/formic acid/water mixture at boiling temperature for 4 h and produced pulp with 46.2% yield, which retained 100% silica on the pulp. The organic acid mixture dissolved most of the lignin and hemicelluloses from the rice straw, which was separated by adding water. The lignin was precipitated (15.1% based on starting raw materials) and hemicelluloses were dissolved in water. Subsequently alkaline extraction of organic acid treated pulp was carried out to remove hemicelluloses and silica. Silica was precipitated from the alkaline extracted liquor by reducing pH to 7. The alkaline extracted pulp was bleached by D0EpD1 bleaching sequence and final pulp properties were reached to 93.6% α-cellulose, 5.1% pentosan and brightness of 81.8% with degraded cellulose (S10-S18) of 1.36% only.

Title of the project: Effect of ribbon retting on the chemical characteristics of jute fiber and jute stick and its influence on pulping

Project Leader: Dr. Md. Sarwar Jahan, P.S.O

Research Associates: Md. Mostafizur Rahman, S.S.O

Introduction

Jute is a cash crop of Bangladesh, which is extracted from jute plant by retting process. Retting and extraction processes have a profound effect on the quality of fiber and on the cost of fiber production. In the conventional retting, jute plant is immersed in clear slow flowing water for 14 to 28 days to degrade the pectic materials, hemicellulose, and lignin. Conventional retting process is not environmental friendly and requires large amount of water. Therefore, Bangladesh Government has introduced ribbon retting method in different areas of the country to ease peeling of jute fiber. In this paper, effect of ribbon retting on the chemical properties of jute fiber and jute stick was carried out.

 

Objectives

  • To characterize ribbon retted (RR) and conventional retted (CR) jute fibre and stick regarding the difference of chemical constituent and its influence on kraft pulping
  • To produce pulp from ribbon retted (RR) and conventional retted (CR) jute fibre and stick
  • To evaluate papermaking properties of the produced pulps

 

Progress achieved

Pentosan, extractive and ash content in ribbon retted jute fiber and jute stick were higher and lignin and α–cellulose content were lower than the conventional retted jute fiber and jute stick. These differences were pronounced for jute stick. Effect of ribbon retting on kraft pulping was also studied. Pulp yield of conventional retted jute fiber and jute stick was higher at any kappa number. The variation of papermaking properties of the produced pulp on retting process was insignificant. The bleachability of jute fiber pulp was better than that of jute stick pulp. Conventional retted fibers showed slightly better bleachability. Jute fiber pulp consumed 15 kg ClO2/ MT of pulp to produce brightness of 81-86 %, while jute stick consumed 30 kg ClO2/ MT of pulp to produce brightness 85%.

Fig. 1. Pulp yield and kappa relationship of jute stick pulp in kraft process

Fig. 2. Pulp yield and kappa relationship of jute fiber pulp in kraft process

 

Special Allocation Projects:

Title of the project: Production of activated carbon from the spent pulping liquor lignin

Implementation period: July 2015- June 2016

 

Introduction

Activated carbon is a highly porous materials with high surface area used in a vast area of science and industrial application like gas purification, water purification, medicinal application, air filtration and as a catalyst support. The demand of activated carbon is increasing due to its multivariable application. Activated carbon is mainly prepared in two ways: physical and chemical activation. In this project, the dissolved lignin in the KOH pulping was used as starting material for activated carbon production. Lignin is mostly beneficial for the production of activated carbon because of its higher percentage of phenolic content, which provides higher yield of carbon than any kind of biomass.

 

Objective

  • To optimize conversion of KOH spent liquor lignin into activated carbon by H3PO4 through chemical activation by varying, activation time, temperature, and ration on pore size, surface chemistry and yield of the final product.

 

Results obtained

Activated carbon was prepared by phosphoric acid (H3PO4) activation of potassium hydroxide spent liquor lignin from rice straw and compared with potassium hydroxide activation (KOH). To optimize the preparation method, the effect of the main process parameters (such as impregnation ratio, activation temperature and activation time) on the performance of the obtained activated carbon (expressed in terms of iodine number and yield of activated carbon) was investigated, and the actions of the activating agents were compared. The activated carbon prepared by H3PO4, under optimum conditions, permitted to obtain a BET surface area of 1100 m2/g, including pore diameter of 14.4 nm, iodine number of 525 mg/g and the yield of activated was 49.2%.

 

Achievements and Activities :

Paper Published

  • Jahan, M. S., Haris, F., Rahman, M. M., Samaddar, P. R., & Sutradhar, S. “Potassium hydroxide pulping of rice straw in biorefinery initiatives”. Bioresource Technology, 216, 445–450, 2016.
  • Ahsan, L. Sarwar Jahan, M. Ni, Y. G. Yang. “Adsorption of acetic acid from pre-hydrolysis liquor from kraft-based dissolving pulp production using amine-based resin”, J- For 5(3), 20-26, 2016.
  • Jahan, M. Sarwar, Rajesh Chandra Deb, M. Mostafizur Rahaman, A. Quaiyyum, “Dissolving pulp from white press cuttings”. Tappi Journal. 15(4), 377-382, 2016.
  • Jahan, M. Sarwar, Uddin, M. N., Rahman, A., Rahman, M. M., & Aminb, M. N. “Soda pulping of umbrella palm grass (Cyperus flabettiformic)”. Journal of Bioresources and Bioproducts, 1(2), 85-91, 2016.
  • Jahan, M. Sarwar, Jannatun Nayeem M. Mostafizur Rahman, Marium Islam, and M. A. Quaiyyum. "Chemical characteristics of ribbon retted jute and its effect on pulping and papermaking properties." Industrial Crops and Products, 84: 116-120, 2016.
  • Sun, G., Zhang, D., An, X., Jahan, M. Sarwar, Zhou, J., Ni, Y. “A Case Study for Integrated Forest Biorefinery: Recovery of Manool from Evaporator Condensate of a Kraft Pulp Mill”. Separation and Purification Technology. 165(13):27–31,
  • Jahan, M. Sarwar, Rahman, M. M., Sarkar, M. “Upgrading old corrugated cardboard (OCC) to dissolving pulp”. Cellulose, 23(3), 2039-2047,
  • Jahan, M. Sarwar, Sarkar, M. Rahman, M. M., “Mixed Cooking of Bamboo with Hardwood”. Accepted in Cellulose Chemistry Technology, 2016
  • Jahan, M. Sarwar, Azharul Islam, M. Mostafizur Rahman, Jannatun Nayeem, and Shamim Ahmed, “Steam and hot water prehydrolysis of bamboo and its effect on residual lignin structure and pulping”. Accepted in Cellulose Chemistry Technology,  
  • Sarwar Jahan, Mamon Sarkar, Mostafizur Rahman, M. “Sodium carbonate pre-extraction of Trema orientalis in the production of paper grade pulp”. Drewno 48(195): 69-78, 2015
  • Sarwar Jahan, Alam, D., Rahman, M. M., & Quaiyyum, M. A. “Isolation and characterization of lignin from okra (Abelmoschus esculentus) fibre and stick”. Bangladesh Journal of Scientific and Industrial Research, 50(4), 257-262, 2015 .
  • Sarwar Jahan, Shrikanta Sutradhar, Mostafizur Rahman M. and Quaiyyum, M. A. “Fractionation of rice straw for producing dissolving pulp in biorefinery concept”. Nordic Pulp and Paper Res. J. 30(4), 562-567, 2015.
  • Al-Maruf, A. Sarwar Jahan, “Pulping and papermaking potential of six mangrove species in Bangladesh”. Journal of the Indian Academy of Wood Science, 12(2), 116-21, 2015.
  • Sarwar Jahan, M. Sarkar, M. & Rahman, M. M. Sodium carbonate pre-extraction of bamboo prior to soda-anthraquinone pulping. Biomass Conversion and Biorefinery, 5(4), 441-423, 2015.
  • Matin, M., Rahaman, M. M., Nayeem, J., Sarkar, , Sarwar Jahan, M.. “Dissolving pulp from jute stick”. Carbohydrate Polymers 125, 44-48, 2015.
  • Liu, H Hu, Sarwar Jahan, M. Ni, Y. “Improvement of furfural production from concentrated pre-hydrolysis liquor (PHL) of a kraft-based hardwood dissolving pulp production process”. J. Wood Chem. Technol. 35(4) 260-269, 2015.

 

Scientists pursuing M.S/M.Phil/ PhD Courses in home or abroad

  1. Mohammad Nashir Uddin, SSO, PhD course, Jahangirnagar University, Savar, Dhaka
  2. Mohammad Mustafizur Rahman, SSO, PhD course, University of Pardubice, Czech Republic.

Guidance to research Work ( PhD/M.Phill /M.S/NCST & BCSIR Fellow) :

Sl. No

Title of research

Research Category

Name of the Student

Name of the Institution

Name of Supervisors

1

Preparation and characterization of lignin based phenol formaldehyde resin for plywood adhesive

BCSIR fellow

Shrikanta Sutradhar

Applied Chemistry and Chemical Engineering, University of Dhaka

Dr. M Sarwar Jahan

2

Evaluation of pulp and paper making properties of dhaincha (Sesbania Aculeate)

BCSIR fellow

Mamun Sarker

Department of Chemistry, Jagannath University

Dr. M Sarwar Jahan

3

Imrovement of Pulp and Bleaching by Chlorine Dioxide (ClO2) splitting

MSc

Mohammad Milan Uddin

Department of Chemistry, Dhaka College

Dr. M Sarwar Jahan

4

Potassium hydroxide pulping of rice straw in biorefinery initiatives

MSc

 

Fahmida Haris

Department of Chemistry, Eden Girls College.

 

Dr. M Sarwar Jahan

5

Potassium hydroxide pulping of saccharum sponteneum (kash)

MSc

Tawhida Akter

 

Department of Chemistry, Eden Girls College.

 

Dr. M Sarwar Jahan

 

Participation in training / Seminar/ Symposium/ Workshop/ Conference :

  • M Sarwar Jahan participated in Training Workshop on Technopreneurship for South Countries 5 - 9 October 2015, Kuala Lumpur, Malaysia
  • ISTIC-TWAS Competition “Successful Innovation in Science and Technology in Developing Countries” 10 - 11 October 2015, Kuala Lumpur, Malaysia
  • Mohammad Nashir Uddin participated to the “International Conference on Mathematical Modeling” on 29-30 December, 2015 organized by  COMSATS, ISESCO and National Mathematical Centre (NMC), Abuja, Nigeria

 

Award:  

  • 3rd Prize in Successful Innovation in Science and Technology in Developing Countries

 

Number of Analytical (Ad-Hoc) Problem Solved:  

Name of the Division

Routine type

Research Type

Total

Pulp & Paper Research Division

 

 

153

 

List of Pictures for each Division:

  • Product Picture ( Raw picture with HD)
  • Major Instruments ( Raw picture with HD)

Summary : Dr. Nashir Uddin is a Bangladeshi researcher started his career in Pulp and Paper Research Division, Bangladesh Council of Scientific & Industrial Research (BCSIR) in early 2006. From then he mainly works in the field of Chemometrics, Experimental Design, Mathematical modeling, Statistical analysis, lignocellulosic conversion, Cellulose chemistry, Bio-refinery. 

 

Research interest:

1. Chemometrics

2. Experimental Design, Mathematical modeling, Statistical analysis.


Name: Mohammad Nashir Uddin
Designation:
Senior Scientific Officer
E-mail : This email address is being protected from spambots. You need JavaScript enabled to view it.

This email address is being protected from spambots. You need JavaScript enabled to view it.

 

Research ID ORCID ID Google Scholar Research gate



R&D Project

Title of the project: Upgradation of Old Corrugated Cardboard (OCC) into dissolving pulp

Project Leader: Dr. Md. Sarwar Jahan, P.S.O,

Research Associates: Md. Mostafizur Rahman, S.S.O

Introduction

Post-use corrugated packaging material is commonly known as “cardboard”, while it is typically referred to as OCC or Old Corrugated Cardboard/ Containers to industry insiders. Many studies have been published on the OCC recycling in order to improve papermaking properties. Dissolving-grade pulps are high-valued, intensively bleached pulps with high cellulose content, low hemicelluloses, lignin content, extractive and mineral content. There is no report available on conversion of OCC into dissolving pulp.

Objective

  • To delignify OCC by formic acid (FA) treatment
  • To extract hemicelluloses from FA treated OCC pulp by alkali
  • To bleach alkali treated OCC pulp by D0EpD1 bleaching sequences

Progress achieved

Delignification and pentosan dissolution of OCC pulp was carried out with formic acid (FA) followed by alkaline extraction.  The kappa number of the initial OCC pulp was 41.4, which was decreased to 18.0 after 3.5 h of formic acid treatment. At this point pentosan content in the formic acid treated pulp was 6.20% that was further decreased to 3.92% after alkaline extraction with 8% NaOH for 120 min at 90oC. Alkaline extracted pulp was bleached to 85% brightness by D0EpD1EpD2 bleaching sequences where α-cellulose content was 94.7%. The recovered lignin and hemicellulosic sugars from the FA spent liquor were 4.3% and 12.7%, respectively. The lignin was characterized with lower methoxyl and higher phenolic hydroxyl groups.

Fig.1. Flow diagram of OCC upgradation into dissolving pulp in a biorefinery concept.

 

Title of the project: Potassium hydroxide pulping of agricultural wastes in biorefinery initiative

Project Leader: Dr. Md. Sarwar Jahan, P.S.O,

Research Associates: Md. Mostafizur Rahman, S.S.O

Introduction

Renewable source of energy and consumer products are required to maintain sustainable development in the modern world. One of the renewable resources is lignocelluloses. Bangladesh is an agricultural country, which generates substantial amount of agricultural wastes those can be use as raw materials for pulp and energy. The main problem of agricultural wastes pulping black liquor recovery that creates environmental pollution. To overcome these problems of agricultural waste pulping new technologies based on potassium hydroxide (KOH) have been proposed.

 

 

Objective

  • Characterization of agricultural wastes
  • Pulping of agricultural wastes by potassium hydroxide (KOH) and soda (NaOH) Processes with varying alkali charge
  • Bleaching of the produced pulps D0EpD1 bleaching sequences
  • Evaluation of papermaking properties
  • Characterization of black liquor generated from the KOH pulping, and
  • Use in soil amendment and its effect on the growth of Red amaranthus.

Progress achieved

Pulping and bleaching response of KOH process were comparable to NaOH process. The papermaking properties of KOH pulp from agricultural wastes were slightly better than those of corresponding NaOH pulp. Potassium based pulping black liquor was also applied in soil amendment and found benifical on soil properties and the growth of Red amaranthus. Compared to non-amended control soil, black liquor increased Red amaranthus growth by 2.7 times.

 

 

Fig. 2. Flow diagram of KOH pulping of agricultural wastes in biorefinery concept.

 

Title of the project: Fractionation of rice straw for producing dissolving pulp, biochemicals and separation of silica

Project Leader: Dr. Md. Sarwar Jahan, P.S.O

Research Associates: Md. Mostafizur Rahman, S.S.O

Introduction

Bangladesh is an agriculture-based country. Each year a huge amount of agricultural residues are found as leftover in Bangladesh. Rice straw is the main agricultural residue in Bangladesh. It can be a good source for fibrous raw material. Rice straw is easier to delignify in alkaline pulping, but difficult in processing due to high fines and silica contents. This paper describes an alternative method of separation and fractionation of silica and lignocellulosic components in producing dissolving pulp.

 

Objective

  • Delignification of rice straw by formic acid/acetic acid/water (FA/AA/H2O) mixture
  • Dissolution of hemicelluloses and silica from the pulp fiber by alkaline extraction
  • Bleaching by D0EpD1 sequences
  • Separation of dissolved silica from the alkaline extracted liquor by precipitation and separation of lignin and sugars from the spent liquor.

 

Progress achieved

Rice straw was treated with acetic acid/formic acid/water mixture at boiling temperature for 4 h and produced pulp with 46.2% yield, which retained 100% silica on the pulp. The organic acid mixture dissolved most of the lignin and hemicelluloses from the rice straw, which was separated by adding water. The lignin was precipitated (15.1% based on starting raw materials) and hemicelluloses were dissolved in water. Subsequently alkaline extraction of organic acid treated pulp was carried out to remove hemicelluloses and silica. Silica was precipitated from the alkaline extracted liquor by reducing pH to 7. The alkaline extracted pulp was bleached by D0EpD1 bleaching sequence and final pulp properties were reached to 93.6% α-cellulose, 5.1% pentosan and brightness of 81.8% with degraded cellulose (S10-S18) of 1.36% only.

Title of the project: Effect of ribbon retting on the chemical characteristics of jute fiber and jute stick and its influence on pulping

Project Leader: Dr. Md. Sarwar Jahan, P.S.O

Research Associates: Md. Mostafizur Rahman, S.S.O

Introduction

Jute is a cash crop of Bangladesh, which is extracted from jute plant by retting process. Retting and extraction processes have a profound effect on the quality of fiber and on the cost of fiber production. In the conventional retting, jute plant is immersed in clear slow flowing water for 14 to 28 days to degrade the pectic materials, hemicellulose, and lignin. Conventional retting process is not environmental friendly and requires large amount of water. Therefore, Bangladesh Government has introduced ribbon retting method in different areas of the country to ease peeling of jute fiber. In this paper, effect of ribbon retting on the chemical properties of jute fiber and jute stick was carried out.

 

Objectives

  • To characterize ribbon retted (RR) and conventional retted (CR) jute fibre and stick regarding the difference of chemical constituent and its influence on kraft pulping
  • To produce pulp from ribbon retted (RR) and conventional retted (CR) jute fibre and stick
  • To evaluate papermaking properties of the produced pulps

 

Progress achieved

Pentosan, extractive and ash content in ribbon retted jute fiber and jute stick were higher and lignin and α–cellulose content were lower than the conventional retted jute fiber and jute stick. These differences were pronounced for jute stick. Effect of ribbon retting on kraft pulping was also studied. Pulp yield of conventional retted jute fiber and jute stick was higher at any kappa number. The variation of papermaking properties of the produced pulp on retting process was insignificant. The bleachability of jute fiber pulp was better than that of jute stick pulp. Conventional retted fibers showed slightly better bleachability. Jute fiber pulp consumed 15 kg ClO2/ MT of pulp to produce brightness of 81-86 %, while jute stick consumed 30 kg ClO2/ MT of pulp to produce brightness 85%.

Fig. 1. Pulp yield and kappa relationship of jute stick pulp in kraft process

Fig. 2. Pulp yield and kappa relationship of jute fiber pulp in kraft process

 

Special Allocation Projects:

Title of the project: Production of activated carbon from the spent pulping liquor lignin

Implementation period: July 2015- June 2016

 

Introduction

Activated carbon is a highly porous materials with high surface area used in a vast area of science and industrial application like gas purification, water purification, medicinal application, air filtration and as a catalyst support. The demand of activated carbon is increasing due to its multivariable application. Activated carbon is mainly prepared in two ways: physical and chemical activation. In this project, the dissolved lignin in the KOH pulping was used as starting material for activated carbon production. Lignin is mostly beneficial for the production of activated carbon because of its higher percentage of phenolic content, which provides higher yield of carbon than any kind of biomass.

 

Objective

  • To optimize conversion of KOH spent liquor lignin into activated carbon by H3PO4 through chemical activation by varying, activation time, temperature, and ration on pore size, surface chemistry and yield of the final product.

 

Results obtained

Activated carbon was prepared by phosphoric acid (H3PO4) activation of potassium hydroxide spent liquor lignin from rice straw and compared with potassium hydroxide activation (KOH). To optimize the preparation method, the effect of the main process parameters (such as impregnation ratio, activation temperature and activation time) on the performance of the obtained activated carbon (expressed in terms of iodine number and yield of activated carbon) was investigated, and the actions of the activating agents were compared. The activated carbon prepared by H3PO4, under optimum conditions, permitted to obtain a BET surface area of 1100 m2/g, including pore diameter of 14.4 nm, iodine number of 525 mg/g and the yield of activated was 49.2%.

 

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