Wastewater soil absorption systems (WSASâ„¢s) have the potential to achieve high treatment efficiencies, yet the understanding and predictability of performance as well as the risk of inadequate function has not been fully quantified. This has been due to the complex and dynamic relationships between hydraulic and purification processes and the factors that control their behaviors. This paper provides an overview of WSAS process principles and performance, and then describes initial experimental research completed as part of a long-term pro ....etc

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I am sham please give me details about the environmental effects of chemical effluents from ready mix industry ....etc

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A.W. BRYSON and K.A. DARDIS


Abstract

Excessive concentrations of metals in industrial effluents may adversely affect the performance of sewage purification works. Although there is existing technology for treating these effluents, it has not found wide application due to costly equipment and chemicals and the absence of sufficient space on most plants. In this paper the feasibility of removing these metals from dilute solutions by electrolytic precipitation using a particulate electrode is investiga ....etc

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Role & Role Effectiveness
Role, Role Space & Role Set
• Mutual obligations under a social system
• Functions one performs in response to the expectations
• Role is defined with the expectations of the role senders, including those of the role occupant.
• Role Space is a dynamic relationship between the self and the various roles an individual occupies and also amongst these roles
• Role Set is a subsystem or inter relationships between a particular role and the other roles in an organi ....etc

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The article presents the reports the performance of municipal waste-water treatment plant using laterite soil-based constructed soil filter (CSF) system. The plant was monitored over a period of 17 months and the result is presented. The dissolved oxygen levels were increased along with the chemical oxygen demand (COD). The bio-chemical oxygen demand (BOD) reduced was significantly reduced. The features of the system are:
lowHRT, high,hydraulic loading, no chemicals, pretreatment and mechanical aeration, odor free, lowenergy requirement.
....etc

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I NEED PPT OF DISPOSAL OF DAIRY EFFLUENTS VRY SOON..PLZ DO IT FAST
....etc

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