نتایج جستجو برای: natural coagulant

تعداد نتایج: 483763  

Introduction and Purpose: Production of large quantities of sludge is a major problem in wastewater treatment plants, which necessitates adopting proper economical and environmental approaches for its management and treatment. The aim of this study was to investigate the effect of polyacrylamide polymer, modified with aluminum oxide nanoparticles, on dewatering of sludge produced from municipal...

Afshin Ebrahimi, Fazel Mohammadi-Moghaddam, Hmid Reza Tashauoei, Hossain Ataeifar, Mokhtar Mahdavi, Yaghob Hajizadeh,

Background & Aims of the Study: In some situation like rainfall seasons raw water become very turbid so it affected the water treatment plant processes and quality of produced water. Treatment of very high turbid water has some concerns like precursors for disinfection by-products and very loading rate of particle on filter's media and consequently increases in water consumptio...

2013
M. Donmez F. Akbal

In this study arsenate [As(V)] removal from drinking water by coagulation process was investigated. Ferric chloride (FeCl3.6H2O) and ferrous sulfate (FeSO4.7H2O) were used as coagulant. The effects of major operating variables such as coagulant dose (1–30 mg/L) and pH (5.5–9.5) were investigated. Ferric chloride and ferrous sulfate were found as effective and reliable coagulant due to required ...

2015
Amira M. El- Kholy

Ras cheeses were manufactured using aqueous extract of globe artichoke or artichoke flowers (Cynara scolymus) proteinase as coagulant were compared to calf rennet. There were slight differences between chemical composition of cheese made using vegetable coagulants or calf rennet. Cheeses manufactured with artichoke extract as coagulant exhibited higher (p < 0.05) levels of water soluble nitroge...

Journal: :مجله انسان، محیط زیست و ارتقاء سلامت 0
rezan rezaeian department of environmental health engineering, zanjan university of medical sciences, zanjan, iran mazyar peyda department of environmental health engineering, zanjan university of medical sciences, zanjan, iran mehran mohammadian fazli department of environmental health engineering, zanjan university of medical sciences, zanjan, iran tooran yarahmadi department of environmental health engineering, zanjan university of medical sciences, zanjan, iran

background; water treatment sometimes needs a coagulation and flocculation process to remove suspended and colloidal materials. inorganic coagulants used create concerns about pollution of the environment and harmful effects on the human’s health. the studies carried out previously indicated the capability of an active coagulant agent extracted from descurainia sophia seed to remove turbidity o...

Journal: :iranian journal of public health 0
k.imandel d.d. farhud a.derakhtian

in recent years, a potential connection between human intake of aluminum and alzheimer’s disease has drawn attention to the aluminum concentration in drinking water. it is therefore of interest to investigate the aluminum concentration m drinking water, produced under different circumstances. a random selection of 152 water samples were taken by the supply source including ground, surface and a...

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