نتایج جستجو برای: chemical coagulant

تعداد نتایج: 380050  

Journal: :Journal of environmental sciences 2011
Xiaoxia Niu Xili Li Jihong Zhao Yigang Ren Yanqin Yang

The aim of the present work was to produce a polyaluminium ferric silicate chloride (PAFSiC) coagulant from acidic and alkaline wastewater of purifying graphite by roasting, and subsequently to evaluate coagulation efficiency of the reagent by treating surface water from the Yellow River as well as municipal wastewater in comparison with the conventional coagulant polyaluminium chloride (PAC). ...

2012
Akshaya Kumar Verma Rajesh Roshan Dash

Magnesium chloride, though cost wise roughly same as of ferrous sulphate, is less commonly used coagulant in comparison to the ferrous sulphate for the treatment of wastewater. The present study was conducted to investigate the comparative effectiveness of ferrous sulphate (FeSO4.7H2O) as iron based salt and magnesium chloride (MgCl2) as magnesium based salt in terms of decolorization and chemi...

Industrial effluents are a menace to the environment and the fact that their characteristics vary from industry-to-industry only adds to the complex challenge they offer to the engineers and scientists. Resource-efficient and environment-friendly solutions to this hazard are a call of the hour. Coagulation, by synthetic chemicals, has been used as a cost-effective and efficient method for manag...

Journal: :Environmental science & technology 2009
Huazhang Zhao Jianxiong Peng Shrongshi Lin Yan Zhang

Covalently bound organic silicate aluminum hybrid coagulants were synthesized by employing two silane coupling agents [diethoxydimethylsilane (DEDMS), gamma-aminopropylmethyldiethoxysilane (APDES)] as silicon sources. An additional coagulant was synthesized using anothersilane-tetraethylorthosilicate (TEOS) for comparison. Both the coagulant with DEDMS and that with APDES as the silicon source ...

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...

Background and Objectives: Food industry wastewater has a high pollution load, which is due to water consumption at various stages. In the absence of adequate wastewater management and supervision of the food industry, this wastewater can be considered as a source of environmental pollution. This study aimed to optimize the coagulation and flocculation process for the treatment of food industry...

Journal: :Journal of hazardous materials 2007
S Raghu C Ahmed Basha

This paper examines the use of chemical or electrocoagulation treatment process followed by ion-exchange process of the textile dye effluent. The dye effluent was treated using polymeric coagulant (cationic dye-fixing agent) or electrocoagulation (iron and aluminum electrode) process under various conditions such as various current densities and effect of pH. Efficiencies of COD reduction, colo...

Journal: :Nucleation and Atmospheric Aerosols 2021

Water has been one of the human life's most significant commodities. Due to increasing price toxic coagulants and method water treatment, rural people live in serious poverty use untreated drink. The best solution for problems described above is a plant-based coagulant instead chemical coagulant. Coagulants made from plants are used Mung beans, peanut seeds, coconut tree cactus, example, have m...

Journal: :iranian journal of public health 0
p. samar k. imandel f. mesghali z. javadi g. samar

the purpose of this study was comparison of applicability of tertiary treatment of tehran domestic sewage with organic and inorganic coagulants or a combination of them. the far test procedure was applied utilizing: alum, polyelectrolyte wt 2600, anionic polyelectorlyte wt 3000, and nonionic polyelctrolyte wt 2690 as organic coagulants (products of calgon). the combination of lime with each of ...

ژورنال: طلوع بهداشت یزد 2014
دهقانی , محمد هادی, محوی, امیر حسین, نبی زاده, رامین, کیانی, قاسم,

Introduction: Untreated leachate is being discharged into the environment in many countries worldwide. Leachate treatment methods have not been unified so far due to variable composition of leachate in different sites. Lack of control as well as disregarding leachate treatment and disposal of it can cause environmental pollution. This study aimed to investigate the Coagulants' effect on the COD...

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