نتایج جستجو برای: chemical coagulant

تعداد نتایج: 380050  

2015
Mouna JAOUADI Noureddine AMDOUNI

The effect of pH, agitation speed and coagulant dosage on the coagulation performance of aluminium sulfate with respect to the treatment of Medjerda water was investigated in this paper. The measurement of residual aluminium speciation was also conducted. The evaluation of treatment efficiency of the optimization of coagulation process while was determined by measuring the reduction of turbidit...

Journal: :Sustainability 2021

The reduction in the fouling is an important way to maintain steady operation for nanofiltration (NF) process leachate treatment. components from real treatment were identified using a scanning electron microscope equipped with X-ray microanalysis (SEM-EDS), infrared spectroscopy (FTIR), atomic analysis and three-dimensional fluorescence (EEM) analysis, coagulation of Fe/Al/PAC was selected red...

Journal: :مجله بهداشت محیط و توسعه پایدار 0
tahereh zarei mahmoud abadi bsc, environmental science &technology research center, department of environmental health engineering, school of public health, shahid sadoughi university of medical sciences,yazd, iran asghar ebrahimi assistant professor, environmental science &technology research center, department of environmental health engineering , school of public health, shahid sadoughi university of medical sciences,yazd, iran mohammad taghi ghaneian associate prof. environmental science &technology research center, department of environmental health engineering , school of public health, shahid sadoughi university of medical sciences,yazd, iran mehdi mokhtari assistant professor, environmental science &technology research center, department of environmental health engineering , school of public health, shahid sadoughi university of medical sciences,yazd, iran mohammad hossein salmani assistant professor, environmental science &technology research center, department of environmental health engineering, school of public health, shahid sadoughi university of medical sciences,yazd, iran parvaneh talebi bsc, environmental science &technology research center, department of environmental health engineering, school of public health, shahid sadoughi university of medical sciences,yazd, iran

introduction: the objective of this study was, wastewater quality investigation and removal efficiency of contaminants from the wastewater tile factory by using  coagulants includes ferric chloride, ferric sulfate and ferrous, aluminum sulfate and poly aluminum chloride in order to reuse it in the processing line. methods: this is an applied study. with regard to shiftwork schedules of the fact...

Journal: :IOP conference series 2023

Abstract Coagulants are essential in purifying raw water for drinking safety consumers. Commonly, aluminium sulphate, a chemical coagulant, is used treatment. However, long-term usage, coagulants can be considered toxic and harmful to the environment due accumulation of this substance pipeline system, which create severe health issues if consumed. The natural plant-based coagulant substitute su...

Journal: :Blood 1977
G C White H R Roberts H S Kingdon R L Lundblad

Factors affecting the coagulant activity of two different prothrombin complex concentrates have been investigated using a sensitive in vitro assay developed in this laboratory. One concentrate contained substantial amounts of potentially thrombogenic material, while the other, which was deliberately fortified with antithrombin III and heparin during production, was judged to be relatively nonth...

2014
J. Keeley P. Jarvis S. J. Judd

Conventional water treatment consumes large quantities of coagulant and produces even greater volumes of sludge. Coagulant recovery (CR) presents an opportunity to reduce both the sludge quantities and the costs they incur, by regenerating and purifying coagulant before reuse. Recovery and purification must satisfy stringent potable regulations for harmful contaminants, while remaining competit...

Journal: :تحقیقات نظام سلامت 0
حسین فرخ زاده کارشناس ارشد مهندسی بهداشت محیط، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران. حسن هاشمی دانشجوی دکتری مهندسی بهداشت محیط، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان ،اصفهان، ایران. مهدی حاجیان نژاد دانشیار، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران.

background: ocsillator system is recognized by many water plant treatment designers for having many advantages, such as combination of mixing processes, flocculation and sedimentation processes in the same unit, the possibility of softening and lucidity simultaneously, and relatively acceptable efficiency. despite using this process in number of the regions in the country, enough researches hav...

2001
Y. K. Jung M. Y. Han

The removal of cadmium and turbidity from contaminated soil-washing water was studied by Electroflotation (EF) at the laboratory scale by using sodium lauryl sulfate (SLS) as an anionic surfactant, and calcium hydroxide (Ca(OH)2) as a coagulant. The stoichiometric cadmium to collector (SLS) and coagulant (Ca(OH)2) ratio was 1:4.5. Significant removal of cadmium (100 %, not detected in the resid...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1973
C B Huggins A H Reddi

Optimal amounts of demineralized bone matrix possess the ability to coagulate platelet-free heparinized, citrated, and oxalated blood plasmas of guinea pigs. Clotting constituents become denatured in contact with the insoluble coagulant proteins. Quantities in excess of optimal modify plasma so that it does not gel when thrombin is added. The newly described coagulant effects are not restricted...

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