نتایج جستجو برای: chemical coagulant

تعداد نتایج: 380050  

Journal: :Jurnal Teknik Kimia - USU 2022

Averrhoa bilimbi is a plant rich in benefits, one of which as natural coagulant. The aim this research to increase the potential an environmentally friendly coagulant for coagulation rubber clone PB 260. concentrations used were 45%, 55%, 65%, 75% and 85%. characteristics tested dry content (DRC), initial plasticity (Po) Plasticity Retention Index (PRI). Based on results study, optimum concentr...

Mohammad Hossein Alizadeh, Mohsen Dehghani,

 Background: The refining process generates large volumes of wastewater containing a variety of chemical contaminants. The use of natural substitutes in treating wastewater which have fewer harmful effects is considered an effective step towards protecting the environment and sustaining the development of these industries. This study focused on the use of Moringa oleifera and alum at t...

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2017
Smoczynski Lech Kosobucka Marta Smoczynski Michal Ratnaweera Harsha Pieczulis-Smoczynska Krystyna

Volumetric diameters Dv and specific surface area SpS of sludge particles formed during chemical coagulation and electrocoagulation of sewage were determined. The obtained aggregate-flocs differed substantially in both Dv and SpS values. The differences in Dv and SpS values of the analyzed particles were interpreted based on theoretical models for expanding aggregates. The most uniform particle...

Journal: :International Journal of Environmental Science and Technology 2021

Glyphosate, the most widely used herbicide in world, is routinely applied to control weeds both agricultural and urban settings. Glyphosate wastewater that has been treated with Fenton’s reagent a high phosphorus content potential cause environmental pollution. However, concentration means it may be possible recover from glyphosate-rich wastewater. To date there have relatively few studies on r...

Journal: :Journal of water and health 2011
M Golestanbagh I S Ahamad A Idris R Yunus

Moringa oleifera is an indigenous plant to Malaysia whose seeds are used for water purification. Many studies on Moringa oleifera have shown that it is highly effective as a natural coagulant for turbidity removal. In this study, two different methods for extraction of Moringa's active ingredient were investigated. Results of sodium chloride (NaCl) and distilled water extraction of Moringa olei...

Journal: :Chemosphere 2005
M I Aguilar J Sáez M Lloréns A Soler J F Ortuño V Meseguer A Fuentes

A physicochemical treatment (coagulation-flocculation) was applied to a slaughterhouse wastewater, using anionic polyacrylamide as coagulant aid to improve the settling velocity of the flocs formed with the coagulants used: ferric sulphate, aluminium sulphate and polyaluminium chloride. The optimum speed and stirring time for the flocculation stage were ascertained along with the optimum pH and...

2013
Bahman Ramavandi Sima Farjadfard

−A biomaterial was successfully synthesized from Plantago ovata by using an FeCl3-induced crude extract (FCE). The potential of FCE to act as a natural coagulant was tested for the pretreatment of real textile wastewater. Tests were performed to evaluate the effects of FCE quantity, salt concentration, and wastewater pH on chemical oxygen demand (COD) reduction during a coagulation/flocculation...

2004
A. Gálvez Perez A. Ramos B. Moreno M. Zamorano Toro

Landfill leachate may cause environmental problems if it is not properly managed and treated. An appropriate treatment process of landfill leachate often involves a combination of physical, chemical and biological methods to obtain satisfactory results. In this study, coagulation-flocculation was proposed as a pretreatment stage of partially stabilized landfill leachate prior to submerged biolo...

2013
Sauro Pierucci Jiří J. Klemeš Franciele P. Camacho Milene C. Bongiovani Flávia S. Arakawa Rosangela Bergamasco

The efficiency of Moringa oleifera (MO) seeds as a natural coagulant in the coagulation/flocculation process, followed by nanofiltration (NF) for the removal of cyanobacterial cells and cyanotoxins is investigated. "Synthetic water" prepared for the tests comprised de-ionized water with an inoculum of microcystis protocystis cells to obtain turbidity within the 50-450 NTU range. Methodology fol...

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