Results 21 to 30 of about 501,751 (192)

Efficient fractionation of castor stalk by subcritical water hydrolysis and hydrated deep eutectic solvents pretreatment

Industrial Crops and Products
Hemp-derived castor stalk constitutes a promising lignocellulosic resource for biomass refining, attributed to its chemical composition being remarkably similar to that of hardwood. This study introduces a novel cascade fractionation strategy integrating
Yike Xing, Yulu He, Chao Wang, Lupeng Shao, Guihua Yang   +4 more
doaj   +1 more source

Producing bacterial cellulose from industrial recycling paper waste sludge

Heliyon, 2023
This study aimed to produce bacterial cellulose from paper waste sludge (PWS) as a method of utilizing the cellulose source from the remaining pulp in the material.
Thuc Tri Nguyen Ngo, Thuy Han Phan, Tuan Minh Thong Le, Tan Nhan Tu Le, Quyen Huynh, Thi Phuong Trang Phan, Manh Hoang, Tan Phat Vo, Dinh Quan Nguyen   +8 more
doaj   +1 more source

Targeted phenolation and rapid extraction of light-colored lignin from pine using nucleophilic reagent in combination with acid hydrotrope p-TsOH

Industrial Crops and Products
Structural change, reduced reactivity, and deepened color of lignin caused by uncontrollable reaction in the process of separation are the main problems that hinder its effective utilization.
Hui Kong, Xiaoqian Chen, Shuzhen Ni, Yongchao Zhang, Menghua Qin, Yingjuan Fu, Chuanling Si   +6 more
doaj   +1 more source

A review on the efficient enzymatic regulation for lignin separation from pulping pre-hydrolysis liquor

Industrial Crops and Products
Pulping pre-hydrolysis liquor (PHL), a byproduct generated during the production of dissolving pulp, is rich in biomass resources, including hemicellulose, its degradation products, and lignin.
Peng Gan, Jiachuan Chen, Wenbo Wang, Jingli Yang, Qiang Wang, Chengcheng Qiao, Guihua Yang, Fatehi Pedram, Kai Zhang   +8 more
doaj   +1 more source

Hydrothermal Carbonization of Different Recycling Paper Mill Waste Streams

Chemical Engineering Transactions, 2021
Hydrothermal carbonization (HTC) is an attractive technology to address problems associated with moisture-rich pulp and paper sludge generated at South African mills and wastewater treatment plants.
Englatina I.N.C. Assis, Evans M.N. Chirwa, Shepherd M. Tichapondwa   +2 more
doaj   +1 more source

Improvement of particulate matter emission from biomass pellet fuel combustion by adding pulping effluent during preparation

Fuel Processing Technology
Low particulate matter(PM) emissions are a research hotspot pursued in biomass fuel fields. Herein, pulping effluent, an industrial byproduct of the pulping industry, was employed to prepare biomass pellet fuel by combining with reed residue through ...
Zhaoxiang Liu, Guihua Yang, Yu Xue, Kai Zhang, Peng Gan, Kefeng Liu, Lingsong Meng, Peihua Zhu   +7 more
doaj   +1 more source

Paper Waste Recycling. Circular Economy Aspects

Environmental and Climate Technologies, 2019
Paper waste is a raw material for a lot of products with different added value. The engineering, economic and environmental aspects of paper waste recycling are analysed for production of composite material, cellulose nanofibers and nanocrystals, bricks ...
Ozola Zanda U., Vesere Rudite, Kalnins Silvija N., Blumberga Dagnija   +3 more
doaj   +1 more source

Oxidative degradation of non-recycled and recycled paper [PDF]

Cellulose, 2020
AbstractThe degradation of paper-based materials involves several and complex mechanisms, such as hydrolysis and oxidation. The behaviour of different types of pulps can be very variable. In this study, the difference upon oxidation of contemporary non-recycled and recycled papers, which now constitute a considerable fibre source, is investigated.
Coppola F., Modelli A.
openaire   +3 more sources

Properties of high quality paper from rag fibers recycling [PDF]

تحقیقات علوم چوب و کاغذ ایران, 2012
In this investigation, soda pulps from old rags applying three pulping times (60, 120 and 180 minutes ) and three levels of active alkali ( 6,8, and 10% NaOH based on OD weight  of rag) and pulping temperature of 125º C were produced. Liquor to rag ratio
Mahid Farzi, Ali akbar Enayati, Davood Parsa paghoh   +2 more
doaj   +1 more source

Paper or Plastic? Yes, but Not as a Mixture

BioResources, 2016
As expressed by the chorus lyrics of a song by Dan Einbender, “it really isn’t garbage ‘til you mix it all together. It really isn’t garbage ‘til you throw it away. Separate your paper, plastic, compost, glass and metal.
Martin A. Hubbe
doaj   +1 more source