نتایج جستجو برای: فضولات wastes
تعداد نتایج: 13250 فیلتر نتایج به سال:
Poultry industry wastes, namely feathers and poultry litter, are an interesting source of substrate for biogas production. The aim of this work was to assess the biomethane potential of raw poultry wastes, as well as the possibility of enhancing this potential by favouring the hydrolysis of cellulolytic and proteinaceous material in the wastes by using bioaugmentation and thermochemical pre-tre...
Fast urbanization and serpentine uses of electronic gadgets during the last two decades has led to genesis of a whopper character of electronic wastes resulting in soil, water and environmental pollutions. Thus pollution administer along with environmental safety has become the greatest worry of environmental scientists and activists worldwide. Dumping of electronic wastes, lone of the by-produ...
This paper looks at waste minimization practices available to the paint and coatings industry. The paper begins with an introduction to the industry and a description of the products. The steps involved in the manufacture of paints and coatings are then described. The paper then identifies the wastes generated. Source reduction and recycling techniques are the predominant means of minimizing wa...
Generation of municipal solid waste (MSW) continues to rise, which leads to loss of resources and increased environmental risks. The conventional treatment of wastes such as open dumping and land filling cause environmental degradation. Since the major fraction of wastes generated in India is organic wastes, composting has emerged as one of the best methods for treatment of wastes. Composting, ...
The operating conditions in spouted bed regime of uniform beds consisting of different biomass wastes dry and wet have been studied to determine the applicability of conical spouted beds with a draft tube in the drying of biomass wastes. This experimental study has been carried out at room temperature and the effect of the solid humidity on the stability of beds of biomass wastes has been deter...
In several countries, low-level radioactive wastes are treated and stored awaiting construction and operation of a final repository. In some cases, interim storage may be extended for decades requiring special attention regarding security issues. The International Atomic Energy Agency (IAEA) recommends segregation of wastes that may be exempted from interim storage or ultimate disposal. The pap...
ترکیبات فرار شیمیایی متصاعد شده از حشرات گیاهخوار و گیاهان آسیب دیده توسط آنها نقش بسیار مهمی در رفتار جستجوگری زنبورهای انگلواره ایفا میکنند که منجر به تعیین محل دقیق میزبان توسط آنها میشود. در این مطالعه، پاسخ بویایی زنبور انگلوارة Habrobracon hebetor، به رایحه های لارو شب پره، Helicoverpa armigera Hünber، فضولات لاروی، گیاهان میزبان شامل گوجه فرنگی و سنبله ذرت سال...
Objective: Dental solid wastes often contain hazardous substances. The first step of management of dental solid wastes includes detection and classification of these substances. This study aimed to qualitatively and quantitatively assess the management of solid wastes by dental offices in Urmia city in 2013. Methods: This descriptive study was conducted on all private dental offices in Urmia...
This study was carried out to reveal the plastic wastes separation practice and disposal mechanism as well as awareness of the negative impact of plastic wastes on the environment, in Makurdi area of Benue State, Nigeria. Questionnaires were administered to 468 individual respondents in 6 sub-locations of the city. Inquisition was also made from 10 hospitals, 6 market centers and the waste mana...
Management of municipal solid wastes (MSW) in most developed societies now involves the use of thermo-chemical conversion methods. This leads to energy and material recovery while also protecting the environment. However, till date most of the wastes generated in Nigeria (including plastic wastes) are either land-filled or openly burnt. These methods are not sustainable and environmentally non-...
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