نتایج جستجو برای: 21 metallic waste
تعداد نتایج: 366933 فیلتر نتایج به سال:
Determining the seasonal and annual quantities and compositions of the municipal solid waste and assessing the present management conditions of three urban communities in the northwest of Iran were the core objectives of this study. Our findings revealed that the average daily per capita of municipal waste generation was 0.489–0.841 kg/cap-day. Organic and food waste comprised the largest part ...
aims: considering the importance of medical waste recognition by health centers staffs and its role on maintenance and improvement of social and environmental health, this study aimed to evaluate the knowledge, attitude and practices of hospital staffs regarding to medical waste management. instrument & methods: the current descriptive, analytical and cross-sectional research was carried out on...
Many horse owners find round bales convenient, less labor intensive, and more affordable than other hay types, but report an inability to control horse BW gain and excessive hay waste. The objectives were to compare hay waste, hay intake, and payback of 9 round-bale feeders and a no-feeder control when used during horse feeding. Nine round-bale feeders were tested: Cinch Net, Cone, Covered Crad...
Correction for ‘Enhanced production of phenol and debromination by co-pyrolysis the non-metallic fraction printed circuit boards waste tires’ Chuan Ma et al. , Green Chem. 2021, 23 6392–6404, DOI: 10.1039/D1GC01176F.
The waste X-ray/ photographic films contain 1.5 2 % (w/w) black metallic silver which is recovered and reused. Around 18-20% of the world's silver needs are supplied by recycling photographic waste. Since silver is linked to gelatin in the emulsion layer, it is possible to break the same and release the silver using proteolytic enzymes. Alkaline protease from Conidiobolus coronatus was investig...
T h e paint industry makes a variety of products that preserve, protect and enhance the objects to which they are applied. Although the post-consumer residuals of these products are usually labeled non-hazardous, they have often been termed “environmentally unfriendly” as has the industry responsible for creating them. With 1,400 manufacturing plants and an output of more than 1.1 billion gallo...
School plate waste is of particular concern worldwide due to its adverse impacts not only on resource use and the environment, but also on students’ health, physical maturation, and academic achievement in the long term. Previous studies on school plate waste have all been conducted in industrialized countries, and more studies are badly needed in developing countries. In this paper, we report ...
the physical properties of the municipal solid waste (msw) in kahrizak landfill (tehran, iran) and its changes due to aging were investigated in this research. a study of the components of the fresh msw in this landfill showed that more than 60% of it was made from the wastes of foods, fruits, vegetables and organic materials. next to that, paper/cardboard and plastics, with contributions of 14...
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 ...
Waste sorts were conducted during each of the four quarters (or seasons) of 1996 at the City of Columbia Sanitary Landfill. A detailed physical sampling protocol was outlined. Weight fractions of 32 waste components were quantified from all geographic areas that contribute to the Columbia Sanitary Landfill using a two-way stratification method, which accounted for variations in geographical reg...
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