نتایج جستجو برای: coagulant aid

تعداد نتایج: 87501  

Background and Aim: Phenol and its derivatives are toxic pollutants, frequently found in surface and tap waters, and in aqueous effluents from various manufacturing processes such as petroleum and petrochemical, coal conversion, synthetic rubber, plastics, paper, oil refineries and phenol-producing industries. In the present study efficacy of Moringa peregrina seed extract in phenol removal was...

Ali Asghar Ebrahimi, Amir Hossein Mahvi , Arash Dalvand , Mehdi Mokhtari , Mohammad Hassan Ehrampoush, Mohammad Taghi Ghaneian , Roya Malek Ahmadi,

Introduction: Since some dyes and their metabolites have toxicity and carcinogenicity potential, and are dangerous to the health of different living creatures, discharge of untreated wastewaters containing large concentrations of dye compounds into water resources is one of the important environmental problems. Therefore, in this research, the efficiency of chemical coagulation process was inve...

Journal: :تحقیقات نظام سلامت 0
امیرحسین محوی استادیار،گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی تهران، تهران، ایران محمد هادی دهقانی استادیار،گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی تهران، تهران، ایران قاسم کیانی دانشجوی کارشناسی ارشد،گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی تهران، تهران، ایران مرتضی بارانی کارشناس شیمی، سازمان مدیریت پسماند، شهرداری اصفهان، اصفهان، ایران

background: untreated leachate is being discharged into the environment in many countries worldwide. leachate treatment methods have not been unified so far due to the variable composition of leachate. moreover, the lack of appropriate treatment and disposal of leachate causes environmental pollution. this study aimed to compare removal efficiency of chemical oxygen demand (cod) and total suspe...

Journal: :علوم و تکنولوژی پلیمر 0
مجتبی سمنانی رهبر اسکندر علیپور رضا اسکندری صدیقی

0

2001
J. C. Saha

This paper present the possible alternative removal options for the development of safe drinking water supply in the arsenic-affected areas. Each alternative option was studied in the Environmental Engineering Laboratory at Indian Institute of Technology (IIT) Kharagpur, India. In this paper conventional precipitation (Alum and Iron salt) and adsorption (With various types of adsorbent) method ...

Journal: :Jurnal Kartika Kimia 2022

The purpose of this study was to conduct a literature review determine the understanding current research on use Cassava Peel (CP) in field wastewater treatment, especially as coagulant. This reports types coagulant modification CP, coagulants characterization CP for each modification, performance under various conditions, and applications treatment. takes references from 51 articles period 201...

Journal: :Civil Engineering Journal 2022

The scarcity of water has become a growing problem worldwide. search for new sources therefore intensified, and one these is greywater. objective this article to evaluate the effectiveness three different coagulants obtained from Moringa oleiferaseed (seed husk, ground seed, degreased) in synthetic methodology planned stages; first stage, seeds were selected, unsheathed, dried sun 24 hours, coa...

2005
Steve E. Humphries Anne Lane Fiona R. Green Jackie Cooper George J. Miller

Ischemic heart disease is caused by a combination of and interaction between a number of genetic and environmental factors. In a study of a group of healthy men from the United Kingdom, such an interaction was identified between the levels of plasma triglycerides and genetic variation determining plasma levels of factor VII, a clotting factor that is associated with risk of ischemic heart disea...

Journal: :international journal of environmental research 0

the efficiency of existing municipal wastewater treatment plants has been affected by the increase of incoming organic load caused by the expansions in developing countries. in the present investigation, the effect of chemically enhanced primary treatment (cept) process was studied on the enhancement efficiency of a municipal wastewater treatment plant in tehran, iran. jar test results showed a...

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