Chemical and leaching properties of paper mill sludge
نویسندگان
چکیده
منابع مشابه
Activated Sludge Treatment of Paper Mill Effluents
Introduction The pulp and paper industry is the second largest industrial water consumer in Europe with a usage of 35 m3/ton paper and a production of 85.2 M tons/year. Its effluents cause considerable damage to the receiving waters if discharged untreated since they have a high biochemical oxygen demand (BOD), chemical oxygen demand (COD) and contain chlorinated compounds, suspended solids (ma...
متن کاملextraction and acetylation of purified trypsin from bovin pancreas and study of some its physico-chemical properties
آنزیم تریپسین در شرایط قلیایی ناپایدار می باشد .و فعالیت پروتئولیتیکی تریپسین منجربه خود هضمی آن در جایگاههای خاصی می گردد. بنابر این آنزیمی با ناپایداری بالا محسوب میگردد. در سالهای اخیر موفق شدند که با ایجاد تغیرات شیمیایی با اضافه کردن فلزات خاص ، کلسیم و یا عمل استیلاسیون منجر به افزایش پایداری آنزیم تریپسین گردند. مطالعات در حال حاضر نشان می دهد که تریپسین استیله شده فعالیت آنزیمی خود را ...
15 صفحه اولeffects of sewage sludge application and leaching on soil chemical properties, yield and quality of barley
sewage sludge can be utilized as one of the best and cheapest organic fertilizer in agriculture due to its organic and plant nutrient contents. however, the presence of potentially toxic heavy metals in some sludges can restrict its use in agricultural lands. a greenhouse study was conducted in the college of agriculture, ferdowsi university of mashhad, to investigate the effects of leaching an...
متن کاملUsing Paper Mill Sludge and Compost in Potato Production: Firs
Introduction and Research Objectives Use of organic by-products as soil amendments in agricultural production exemplifies a strategy for converting wastes to resources. Paper mill sludge is one of the largest underutilized organic by-products in Wisconsin. Paper mill sludge (PS) generation in Wisconsin increases approximately 5% per year, and 70% of all PS generated currently (740,000 dry tons)...
متن کاملImpact of pulp and paper mill effluent on physico-chemical properties of soil
Water requirement to meet agriculture, domestic, industrial and other demands indicate the need for regeneration of waste water. Industrial waste water is being used in dry areas. Waste water of pulp and paper industry (brown with unpleasant smell) is usually alkaline in nature, has high suspended solids, total solids, COD, BOD and toxic odorous substances. It was observed in the study areas th...
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ژورنال
عنوان ژورنال: Chemical Speciation & Bioavailability
سال: 2008
ISSN: 0954-2299,2047-6523
DOI: 10.3184/095422908x324480