flocculent dosage Articles
-
Reduction dye in paint and construction chemicals wastewater by improved coagulation–flocculation process
A coagulation–flocculation process was applied to wastewater of paint and construction chemicals producing factory in Turkey. Ferric chloride was used as coagulant and several natural based materials, namely limestone, pumice, sepiolite, bentonite and mussel shell were used as flocculant aids. The effects of dosage of flocculant aids on the pH, color and electrical conductivity of wastewater ...
-
Upgrading secondary wastewater plant effluent by modified coagulation and flocculation, for water reuse in irrigation
In this study, the feasibility of using coagulation, flocculation, and sedimentation (CF-S) for advanced treatment of secondary effluent released from the Yazd Intermittent Cycle Extended Aeration System was investigated. Four coagulants including ferric chloride (FeCl3), polyaluminum chloride (PAC), ferrous sulfate (FeSo4), and potassium ferrate (K2FeSo4) along with Gflog C-150 as flocculant ...
-
A novel poly(acrylic acid-co-acrylamide)/diatomite composite flocculant with outstanding flocculation performance
Series of anionic flocculants with outstanding flocculation performance, poly(acrylic acid-co-acrylamide)/diatomite composite flocculants (PAAD) were successfully prepared through aqueous solution copolymerization and applied to flocculate from oil-field fracturing waste-water. The structure of PAAD was characterized by Fourier transform infra-red spectroscopy , 13C nuclear magnetic resonance ...
-
Algae separation from urban landscape water using a high density microbubble layer enhanced by micro-flocculation
Eutrophication of raw water results in outbreaks of algae, which hinders conventional water treatment. In this study, high density microbubble layers combined with micro-flocculation was adopted to remove algae from urban landscape water, and the effects of pressure, hydraulic loading, microbubble layer height and flocculation dosage on the removal efficiency for algae were studied. The ...
-
Flocculation-Flotation vs. MBR for High MLSS Secondary Clarification
Abstract Rendering plants produce high strength wastewater with high TSS, FOG, BOD and TKN. At one such plant it was decided to install a primary DAF followed by an anaerobicanoxic-aerobic treatment system for TSS, FOG, TKN and BOD removal. Since wastewater is a high strength (TSS up to 10,000, FOG up to 3,000, TKN up to 350 and BOD up to 6,000 mg/l, respectively, bioreactors will produce high ...
-
Correlation of wood-based components and dewatering properties of waste activated sludge from pulp and paper industry
Large amounts of wet sludge are produced annually in municipal and industrial wastewater treatment. Already in pulp and paper industry, more than ten million tons of primary sludge, waste activated sludge, and de-inking sludge is generated. Waste activated sludge contains large quantities of bound water, which is difficult to dewater. Low water content would be a matter of high calorific value in ...
-
Effect of flocculant on microbial populations and function in Chem-Bioflocculation (CBF) treatment process using PCR-DGGE
The group-specific primers were applied to investigate microbial communities in Chem-Bioflocculation (CBF) reactor by PCR-DGGE method. α-proteobacteria, β-proteobacteria, actinomycetes and acidobacterium, were analysed by using diversity index at different dosage of Polyaluminium Ferric Chloride (PAFC) based on DGGE patterns. Clustering analysis showed that community structure of specific ...
-
Flocculation properties of bioflocculant MBF-7 produced by Penicillium purpurogenum in kaolin suspension
The properties and modes of flocculation for kaolin suspension with bioflocculant MBF-7 produced by Penicillium purpurogenum, were investigated. The results showed that the optimum pH and dosage for flocculation was above 8 and more than 40 mg L−1, respectively. Flocculating activity of MBF-7 was increased in the presence of Mg2+, Ca2+, Al3+, or Fe3+, especially in the presence of Ca2+, while ...
-
The safe use of cationic flocculants with reverse osmosis membranes
Abstract Flocculants are used in combination with coagulants to agglomerate suspended particles for removal by filtration. This technique is used extensively in all types of surface waters to reduce the silt density index (SDI) and minimise membrane fouling. Although organic cationic flocculants are particularly effective, their widespread use in membrane applications is limited because of ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you