نتایج جستجو برای: and sewage and toxic waste dumping therefore
تعداد نتایج: 16860765 فیلتر نتایج به سال:
The illegal dumping of waste has been a serious environmental concern of most countries in the world. This paper examines the relationship between the provision ofwaste treatment facilities and the frequency of illegal dumping. Our results show that a shortage of intermediate waste treatment facilities has played an important role in increasing the frequency of illegal dumping. 2010 Elsevier B....
abstract to study the effects of sewage sludge on tomato seedling growth, a series of pot experiments, each pot containing 17 kg soil, were conducted in a randomized complete design with eight replications. treatments used were: 5 levels of sewage sludge (5, 10, 20, 30 and 40 tons/ha) and two control treatments (t1, without sewage sludge and t2, sewage sludge + complete fertilizers). analysis o...
This paper reviews the concentrations of persistent organic pollutants such as flame retardants (PBDEs), dioxins/furans (PCDD/Fs), polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and heavy metals/metalloid concentrations of different environmental media at Guiyu, a traditional rice-growing village located in southeastern Guangdong Province (PR China), which has turned ...
Operational and structural diagnosis of sewerage and drainage networks in Côte d'Ivoire, West Africa
In Cote d'Ivoire, the failure of urban sewage systems is a crucial problem for drainage wastewater and rainwater. This due to many factors therefore, calls diagnostic studies. The present study aimed at analyzing these networks in order identify different that contribute operational structural degradation selected sewerage Abidjan, d'Ivoire. method used involved semi-structured interviews, vide...
abstract the first purpose of this study was to investigate the effect of consciousness-raising (c-r) activities on learning grammatical structures (simple present tense in this case) by iranian guidance school efl learners. the second one was to investigate the effect of gender on learning the simple present tense through c-r activities and tasks. finally, this study aimed to investigate the ...
within communicative, interactive, and learner-centered framework of language teaching and learning, students need to learn four skills of listening, speaking, reading, and writing for their educational success. but of all the language skills, reading enjoys a paramount significance in so many second or foreign language academic contexts. in spite of its importance, language learners still have...
Improper dump sites have served many years as an ultimate disposal site for all types of waste; municipal solid waste, industrial sewage and hazardous waste in developing countries such Ethiopia. Physical, chemical biological processes interact simultaneously to bring about the overall decomposition wastes (chemically laden leachate). If not, deal properly, kind dumping can cause pollution grou...
the present paper offers a postcolonial reading of two of the best novels by v. s. naipaul – half a life and the mimic men – in five chapters. the focus of this research is on different notions of postcolonial criticism and their application on the two novels as discussed from homi bhabha’s and frantz fanons points of view. having introduced the life and literary career of v. s. naipaul in th...
The increasing solid waste generated in the Accra metropolis has not been accompanied with adequate sanitation facilities and management programs. Notable among the waste management problems is inadequate operational funding from the municipality’s budget allocation for the collection and disposal processes. The disposal methods mostly depend on the obsolete dumping with the associated environm...
Background and Objective: Dewatered sewage sludge is a by-product of wastewater treatment process which can cause health and environmental problems if not properly managed. The aim of this study was to determine the feasibility of composting of Yazd WWT dewatered sludge with windrow method using different treatments. Materials and Methods: In this study, the dewatered sewage sludge was mixed...
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