Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 91 for “"Coagulant"”.
-
Coagulant dipping of natural rubber latex
A detailed study has been made of' the coagulant dipping of natural rubber latex using calcium, chloride as the coagulant. The primary object of the investigation was to deepen understanding of the kinetics and the mechanisms of deposition. Results are given for the effect of variables such as …
-
Targeting phosphatidylserine exposure in pro-coagulant platelets.
Pro-coagulant platelets are a subpopulation of activated platelets that are central to blood clot formation in both thrombosis and haemostasis. They expose the anionic phospholipid, phosphatidylserine (PS), in their outer leaflet enabling coagulation complex assembly on the negatively charged …
-
Interactions of cadmium selenide (CdSe) quantum dots with coagulant proteins extracted from Moringa oleifera seeds
… quantum dots (QDs) and Moringa oleifera seeds coagulant protein (MOCP), CdSe QDs with hexagonal phase and crystalline size of 3.1-8.1 nm were synthesized in presence of organic solvent Trioctyl-n-phosphine oxide (TOPO) and Trioctyl phosphene (TOP) using colloidal synthesis. The purified …
-
Leachate treatment by using composite coagulant made from polyaluminium chloride (PAC) and tapioca starch (TS)
… investigates the effectiveness of composite coagulant PACTS made from polyaluminum chloride (PAC) and tapioca starch (TS) in the removal of colour, turbidity, suspended solids (SS), chemical oxygen demand (COD) and ammonia from Simpang Renggam landfill. PAC was selected as a primary coagulant …
-
Green approach to treat institutional wastewater by using cassava peels starch (CPS) as coagulant aid
… beyond standards. Applications of natural coagulants are widely in practice due to abundant source, low price, environment-friendly and rapid biodegradable as compared to inorganic based coagulants. This study traces the potential removal of pollutants from institutional wastewater by …
-
New composite coagulant from agro-waste (tapioca peel) and polyaluminium chloride for primary landfill leachate treatment
… treatment, alongside the utilisation of chemical coagulants. On the contrary, the use of chemical coagulants has certain drawbacks towards the health of the ecosystem and living organisms. Hence, this leads to the application of natural material (tapioca peel powder (TPP)) originated and recycled …
-
Evaluation of alternative pretreatment methods for use in direct filtration water treatment
… alum alone, alum in conjunction with a polymeric coagulant aid, and a primary coagulant polymer in the coagulation-flocculation-sedimentation portion of a water treatment process and to study the implications of the results with respect to future use in direct filtration. The performance of the …
-
Performance Characterization of Coagulation Pretreatment for Two Industrial Effluents
… dissolved organic compounds. Alum and natural coagulant Opuntia ficus-indica (OFI) were used as the coagulants, and the process was optimized to improve the removal of turbidity and dissolved organic carbon (DOC). The maximum removal of 98% and 63% in turbidity and DOC from OSPW, respectively …
-
The effects of rapid mixing on the coagulation and sedimentation of ultra-fine coal and clay particles
… to determine the effects of a combination of coagulant addition and rapid mixing on the settleability of these particles. After initial testing, aluminum sulfate and two low molecular weight cationic polymers, Cyanamid Magnifloc 513C and Cyanamid 515C, were chosen as primary coagulants for use …
-
Colloid Formation for the Removal of Natural Organic Matter during Iron Sulfate Coagulation
… species have also been targeted with high coagulant doses. However, colloidal matter is smaller than particulate matter and therefore not easily removed by conventional drinking water treatment. This research focused on the conversion of soluble organic matter to colloids using relatively …
-
A laboratory study of factors affecting the applicability of direct filtration water treatment
… turbidity, other variables of interest were coagulant choice, inclusion of flocculation with direct filtration, and the hydraulic loading rate applied to the filter. Results indicated that direct filtration treatment may be an attractive treatment alternative for raw water of influent …
-
Seawater as coagulant substitute and the effects on disinfection in chemically enhanced primary wastewater treatment : a case study of Paraty, Brazil and the Deer Island wastewater treatment plant, Boston
Paraty is a small touristic city on the South Eastern coast of Brazil plagued with public health problems inherently linked to its poor water and sanitation practices. This thesis centers on the design of an appropriate wastewater treatment facility for the City. The new and interesting use of …
-
Application of Ozone in Dissolved Air Flotation (DAF) for Enhanced Removal of TOC and Suspended Solids in Pulp and Paper Wastewaters
… (COD), turbidity, and color. The most suitable coagulant and coagulant aid, aluminum chlorohydrate and cationic polymer NS 4700P respectively, were selected, and an effective bench-scale experimental procedure was established. Pre-ozonation did not reduce the need for coagulant due to little …
-
Treatment of textile wastes utilizing a lime-polyelectrolyte system
… cationic, and nonionic polyelectrolytes as coagulant aids. The effect of the process on the removal of organic pollutants was determined. The time interval between coagulant additions was analyzed. Color reductions of at least 94 per cent were obtained by the lime and lime-polyelectrolyte …
-
Inhibiting platelet scramblase activity
… platelets form, pro-aggregatory and pro-coagulant platelets. Pro-aggregatory platelets have active integrins and aggregate together via fibrinogen to form the haemostatic plug which prevents bleeding. Pro-coagulant platelets expose phosphatidylserine (PS) which acts as a surface for …
-
Characterization of sludges produced when using polyaluminum chloride coagulants
… conditions; specifically, the ratio of aluminum coagulant to total dry solids in the sludge. Lime was an effective conditioner for doses that produced a sludge pH value in the range of 11.5 to 11.8 which, again, was a direct function of the aluminum coagulant fraction in the sludge. Cationic …
-
Iron recovery from a representative water treatment plant sludge
… treatment and disposal have been suggested, coagulant recovery may prove to be the most economical. This investigation was concerned with recovery of iron coagulant by chemical addition. Sulfuric acid, hydrochloric acid, and sodium hydroxide were added to a water treatment plant sludge …
-
Colloid Formation Resulting from Alum Coagulation of Organic-Laden Sourcewaters
… OC colloid formation by exerting some amount of coagulant demand, signified by decreasing OC colloid formation with increasing initial turbidity. Coagulation temperature had a considerable impact on particulate matter formation, as there was an increase in the dose at which particle formation …
-
The removal of organic waste matter from secondary sewage effluents by chemical coagulation
… municipal sewage-treatment plant. The inorganic coagulants alum, ferric chloride and lime as well as organic polyelectrolytes were tested for their ability to remove the organic waste matter from the above effluents under various conditions of pH and coagulant concentration. The tests were on …
Page 1 of 5