نتایج جستجو برای: organic wastes

تعداد نتایج: 212936  

Journal: :journal of agricultural science and technology 2015
a. heidari p. asadi

in this study, micromorphological properties of some samples collected from pedons polluted with petroleum refinery wastes and some adjacent unpolluted pedons were studied. after description of the studied pedons, disturbed and undisturbed samples were collected for physicochemical and micromorphological analyses. the results showed that the physicochemical properties (i.e. structure, bulk dens...

Journal: :Environmental monitoring and assessment 2007
H N Chanakya T V Ramachandra M Guruprasad Vinuta Devi

There is a growing interest in management of MSW through micro-treatment of organic fraction of municipal solid wastes (OFMSW) in many cities of India. The OFMSW fraction is high (>80%) in many pockets within South Indian cities like Bangalore, Chikkamagalur, etc. and is largely represented by vegetable, fruit, packing and garden wastes. Among these, the last three have shown problems for easy ...

Journal: :Bioresource technology 2009
Baoning Zhu Petros Gikas Ruihong Zhang James Lord Bryan Jenkins Xiujin Li

This study was conducted to determine the characteristics and biogas production potential of organic materials separated from municipal solid wastes using a rotary drum reactor (RDR) process. Four different types of wastes were first pretreated with a commercial RDR system at different retention times (1, 2 and 3 d) and the organic fractions were tested with batch anaerobic digesters with 2.6 g...

2012
R. Rajkumar Grunam Singh M. Jayakumar

Due to human activities huge amount of organic wastes are simply dumped in the environment creating disposal and pollution problems. Suitable and sustainable utilization of these wastes is vermicomposting which converts wastes in to wealth. In the present study, 1:1 proportion (wt./wt.) of vegetable market waste (VMW) and press mud (sugar industry waste) mixture have been used for vermicomposti...

2017
J. Jara-Samaniego M. D. Pérez-Murcia M. A. Bustamante C. Paredes A. Pérez-Espinosa I. Gavilanes-Terán M. López F. C. Marhuenda-Egea H. Brito R. Moral

Currently, the management of urban waste streams in developing countries is not optimized yet, and in many cases these wastes are disposed untreated in open dumps. This fact causes serious environmental and health problems due to the presence of contaminants and pathogens. Frequently, the use of specific low-cost strategies reduces the total amount of wastes. These strategies are mainly associa...

دلجوی توحیدی, طاهر , محمدی ترکاشوند, علی, هاشم آبادی, داود,

The possibility of using some organic wastes as growth media for English daisy, plus some fertilization methods, was investigated in a factorial experiment, based on a completely randomized blocks design with 45 treatments and three replications. The first factor was different growth media and the second factor was three methods of fertilization including without fertilization (control), fertil...

2012
A Ahsan M Alamgir M Imteaz NN Nik Daud R Islam

BACKGROUND Developing cities like Khulna, the third largest metropolitan city in Bangladesh, have now begun to confess the environmental and public health risks associated with uncontrolled dumping of solid wastes mainly due to the active participation of non-governmental organizations (NGOs) and community-based organizations (CBOs) in municipal solid waste (MSW) management. METHODS A survey ...

Journal: :Remote Sensing 2010
Terrence Slonecker Gary B. Fisher Danielle P. Aiello Barry Haack

One of the critical global environmental problems is human and ecological exposure to hazardous wastes from agricultural, industrial, military and mining activities. These wastes often include heavy metals, hydrocarbons and other organic chemicals. Traditional field and laboratory detection and monitoring of these wastes are generally expensive and time consuming. The synoptic perspective of ov...

2003
Fabien Monnet

Anaerobic digestion is a process which breaks down organic matter in simpler chemicals components without oxygen. This process can be very useful to treat arising organic waste such as:-sewage sludge-organic farm wastes-municipal solid wastes-green/botanical wastes-organic industrial and commercial wastes Before being digested, the feedstock has to und ergo pre-treatment. There are various type...

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