نتایج جستجو برای: waste cellulose

تعداد نتایج: 110771  

2015
Linnéa Nilsson Gunnar Westman

The aim of this project has been to prepare nanocrystalline cellulose (CNC) from hydrochloric acid hydrolysis and optimise the process. CNC was also prepared from sulphuric acid hydrolysis to use as a reference. The starting material in both these processes was microcrystalline cellulose (MCC), therefore another cellulose source was used to try and prepare CNC from. The cellulose was extracted ...

Journal: :تحقیقات نظام سلامت 0
مهربان صادقی دانشیار، گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی شهرکرد، شهرکرد، ایران. قاسمعلی عمرانی استاد، گروه بهداشت محیط، دانشکده بهداشت، واحدعلوم وتحقیقات تهران، دانشگاه آزاد اسلامی، تهران، ایران. امیر حسین جاوید استادیار، گروه مهندسی محیط زیست، دانشکده محیط زیست وانرژی، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران، تهران، ایران. بهاره رحمانی سامانی کارشناس ارشد مهندسی محیط زیست، واحد علوم و تحقیقات اهواز، دانشگاه آزاد اسلامی، اهواز، ایران. حسن هاشمی دانشجوی دکتری، مهندسی بهداشت محیط، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران. وفا محمودی نژاد کارشناس زمین شناسی، اداره استانداری، شهرکرد، ایران.

background: based on the economical and environmental concepts, the main purpose of the industrial waste management is reducing the production of these materials which is accessible by developing strategies of reuse, waste recycle and upgrading the technologies. accurate investigation of the quality and quantity of the industrial waste is the basis of the industrial waste correct management. th...

2015
Krishnan A. Iyer Amanda M. Flores John M. Torkelson

As a significant part of municipal solid waste (MSW), waste cardboard (CB) is a sustainable, inexpensive, and rich source of cellulose. Previous studies of polyolefin/CB composites have reported modest enhancement to major reduction in modulus and major reduction in elongation at break values relative to neat polymer. Here, green hybrids of low density polyethylene (LDPE) and polypropylene (PP)...

Journal: :Molecules 2015
Mayra Mariño Lucimara Lopes da Silva Nelson Durán Ljubica Tasic

Nanocellulose is a relatively inexpensive, highly versatile bio-based renewable material with advantageous properties, including biodegradability and nontoxicity. Numerous potential applications of nanocellulose, such as its use for the preparation of high-performance composites, have attracted much attention from industry. Owing to the low energy consumption and the addition of significant val...

2013
M. Muthangya

Submitted: May 21, 2013; Accepted: Jul 3, 2013; Published: Jul 20, 2013 Abstract: Mushrooms are a primary part of managing solid waste, building organic soil and returning minerals to the soil. Sisal processing in Kenya generates an estimated 611,875 tonnes of solid waste annually, which is discarded leading to environmental pollution. Sisal waste contains; lignin, cellulose and hemicelluloses ...

2007
A. GODLEY K. LEWIN

The Environment Agency is required to monitor the diversion of biodegradable municipal waste (BMW) from landfill. Reliable methods are needed to measure the biodegradability of municipal waste, both as mixed municipal waste and as individually separated fractions. An evaluation of several methods was carried out using a variety of organic materials typically found in municipal solid waste. The ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
Ting Lei Ming Guan Jia Liu Hung-Cheng Lin Raphael Pfattner Leo Shaw Allister F McGuire Tsung-Ching Huang Leilai Shao Kwang-Ting Cheng Jeffrey B-H Tok Zhenan Bao

Increasing performance demands and shorter use lifetimes of consumer electronics have resulted in the rapid growth of electronic waste. Currently, consumer electronics are typically made with nondecomposable, nonbiocompatible, and sometimes even toxic materials, leading to serious ecological challenges worldwide. Here, we report an example of totally disintegrable and biocompatible semiconducti...

Journal: :Chemosphere 2021

The study evaluated the preparation of a biocomposite using waste-derived polyhydroxybutyrate (PHB) and bagasse cellulose (α-cellulose) in biorefinery approach. PHB was produced dark fermentation effluent rich volatile fatty acids (VFA) derived from vegetable waste α-cellulose extracted sugarcane (SCB). Nutrient limitation induced microbial accumulation, wherein maximum production 0.28 ± 0.06 g...

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