polymer dosing Articles
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Dewatering optimization with in-line and real-time measurement of polymer: results from full-scale treatment plants
Full-scale testing was carried out at two wastewater treatment plants to determine whether residual polymer concentration, measured by filtrate and centrate absorbance at 191 nm, can be used to identify the optimum polymer dose and achieve in-line and real-time dewatering optimization. The first plant uses high speed centrifuges and the second plant uses belt filter presses for dewatering. ...
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Influence of water treatment residuals on dewaterability of wastewater biosolids
Co-dewatering of water treatment residuals (WTR) and wastewater biosolids can potentially benefit municipalities by reducing processing equipment and costs. This study investigated dewaterability (using capillary suction time, CST) of combined alum residuals (Al-WTR) and anaerobically digested biosolids at various blending ratios (BR), defined as the mass ratio of WTR to biosolids on a dry ...
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Event Announcement-2018 Vietwater in SECC of HCMC
Maoyuan Environmental Protection Technology, Co., Ltd., is a company specialized in Screw Press Sludge Dewatering Machine, Belt filter press, Polymer dosing machine and other sludge handling equipment. Well-known clients include Sinopec, BASF Chemical, China-petrol, Sino-Franch Water, etc. We will be at Vietwater Exhibition from 7th to 9th November, at SECC in Ho Chi Minh City. And we sincerely ...
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Implications and remediations of DMAEA-Q type polymer hydrolysis in wastewater treatment plants
The present paper outlines the impact of hydrolysis occurring in DMAEA-Q type polymers in the dewatering facilities of municipal wastewater treatment plants. Laboratory studies of polymer hydrolysis kinetics were combined with full-scale dewatering experiments to investigate the influence of polymer charge loss on polymer consumption and cake dry matter yields. The results indicate that prolonged ...
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Rotomite 6000 dredge system - centennial coal-case study
Centennial Coal's Mannering Colliery mine averages over 1M tons of coal per year when operating at full capacity. The mine's run-off ponds' sludge issues prompted Centennial to contact Dredging Solutions, SRS Crisafulli's Dealer in Australasia, and an experienced dredging contractor. Dredging solutions deployed the Crisafulli Rotomite 6000 auger suction dredge system because of the equipment's ...
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Comparison of centrifuge and belt press for compressible digested sludge after thermal hydrolysis
ABSTRACT Historically it has been shown on many projects that centrifuges can outperform belt presses in dewatering digested sludge. However results from a number of projects where sludge has been treated before digestion with Cambi thermal hydrolysis process (THP) have shown good results for belt press dewatering – generally greater than 30% DS. The authors propose that the main mechanism in ...
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Advanced phosphorus removal via coagulation, flocculation and microsieve filtration in tertiary treatment
The applicability of microsieve technology together with coagulation and flocculation for advanced phosphorus removal was investigated. A pilot unit including a microsieve with 10 μm mesh size was operated continuously with secondary effluent from Ruhleben wastewater treatment plant in Berlin. By applying a pretreatment of 0.07–0.09 mmol/L (as metal) coagulant and 1.5–2 mg/L cationic polymer, ...
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Removal of microcystin-LR from water by polymers based on
N -vinylformamide structureThe work describes the results of experiments aimed at developing a new method using synthetic polymers to remove microcystins from water. Three hydrophilic polymers were synthesized based on a N-vinylformamide (NVF) structure cross-linked with divinylbenzene (DVB): p(NVF-co-DVB), p(VAm-co-DVB), and, after reaction with glutaraldehyde (GA), p(VAm-co-DVB)GA. The physicochemical characteristics ...
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Flocculation prior to the belt filter - France - Case Study
Customer / Type of customer Cazaux sewage treatment plant - wastewater sludge flocculation Cazaux - FRANCE (33) Issue / Need This plant uses a biological treatment process, “extended aeration activated sludge”, followed by a water clarifier. The sludge is treated by a belt filter, which produces a product consisting of 83% water and 17% dry matter. Flocculation is used to ...
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Optimisation of micro-processes for shear-assisted solid–liquid separation in a rotatory batch flow vortex reactor
This paper reports the study of micro-processes in a novel pre-treatment technique using a pellet forming batch flow vortex reactor of cylindrical shape that consists of axially revolving rotor plates between fixed stator plates. The suspension was first mixed with high molecular weight synthetic polymers by stirring for approximately 50 seconds and then agitated for 20 minutes. The process ...
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City of Stromsburg, Nebraska - Case Study
In May 2011, AdEdge Water Technologies was selected among other vendors by Miller & Associates to supply a turnkey arsenic and manganese treatment system for the Village of Stromsburg, Nebraska. Arsenic levels in the water ranged from 0.0178 mg/L to 0.0276 mg/L and the manganese levels fluctuated between 0.05 mg/L and 0.12 mg/L, well above the EPA maximum contaminant levels of 0.010 mg/L ...
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Dewatering of Mineral Particles Out of Process Water - Case Study
Company: Nedmag Industrie bv Veendam, The Netherlands Previous situation: Continuously Dewatering 4,5 m3 process water out of a decanter with an average dry solid content of 1% in 1 m3 bags. Pour dewatering efficiency and flow rate Labour intensive handling of 1 m3 bags Labour intensive changing of filling line from one bag to the other Not all solids captured into 1 m3 bags and still ...
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A pilot study of anaerobic membrane digesters for concurrent thickening and digestion of waste activated sludge (WAS)
The increased interest in biomass energy provides incentive for the development of efficient and high throughput digesters such as anaerobic membrane bioreactors (AnMBRs) to stabilize waste activated sludge (WAS). This paper presents the results of a pilot and short term filtration study that was conducted to assess the performance of AnMBRs when treating WAS at a 15 day hydraulic retention time ...
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Dewatering sludge - France - Case Study
Customer / Type of customer Sewage treatment plants Châtres - FRANCE (77) Issue / Need This plant uses a biological treatment process, “extended aeration activated sludge”, followed by a water clarifier. Up until May 2018, the sludge was treated using a dozen or so drying beds, which involved a number of manual operations. The local authorities decided to use a sludge ...
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High Rate Treatment of CSO/SSO Flows Using a High Density Solids Contact Clarifier/Thickener - Results from a Pilot Study
ABSTRACT A two-month pilot study was conducted at the Village Creek Wastewater Treatment Plant in Birmingham, Alabama to test the technical feasibility of utilizing a high-rate, highdensity solids contact clarification process for the treatment of sanitary sewer overflow (SSO). Five phases of testing were performed over the two-month period. During Phase I testing, optimum steady state operating ...
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One of the largest ipp power plants in the middle east uses membrane desalination for boiler feed water
The Facility Sidi Krir Unit 3 & 4 Power Plant, developed by InterGen and Edison SpA, is located about 30 kilometers west of Alexandria, Egypt. It is a natural gas fired power plant and at 685 MW generating capacity, is the largest IPP thermal power plant in the Middle East. The plant consists of two power blocks, which share a common membrane based Seawater Desalination system for their ...
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Sütaş Aksaray & Karacabey Project - Case Study
Customer: Arbiogaz (Turkey) Project Name: Sütaş Aksaray & Karacabey Project Manufacturing year: 2007 etc.; Material: CS + Sand B. + Epoxy Coating Scope of supply 1 +1 pcs. of Manual Screen; Material: AISI 304 1 + 1 pcs. of Neutralization Tank Mixer; Material: CS + GRP Coating 1 + 1 pcs. of Ø 2.300 x 2.500 mm. Coasting Tank with its Manholes, Nozzles, Coils 1 + ...
By ASTIM A.S.
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BAIONI supply complete dewatering centrifuge system for APS Ltd
Situated near Slough, in Berkshire, Aggregate Processing Solutions (APS) is operating a washing plant where Baioni has recently supplied a centrifuge system to complement the whole existing plant. Baioni has boosted the capacity of its decanter centrifuges range to pave the way for further improvements in waste water and sludge treatment for a wide range of feed solids and flows. The Italian ...
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Case Study - ADC (Eastanglia) Ltd.
Key facts Company ADC (Eastanglia) Ltd. Location Bonnets Lane, PE188JE Wisbech England Web www.adceastanglia.co.uk Simon Moos solution AVC/DOD - On-site dewatering Customer profile ADC (East Anglia) Ltd. is based with their head office near Wisbech in the UK. ADC provide specialist drainage services to customers such as the En¬vironment Agency throughout the whole of East Anglia and the ...
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The effectiveness of humic acids coagulation with the use of cationic polyacrylamides
The chemical coagulation process is a popular method for eliminating the precursors of disinfection by-products. This study presents the results of a laboratory experiment which investigates the use of cationic polyacrylamide copolymers (CPAMs) as primary coagulants in the purification of solutions containing humic acids (HA). A number of polymers with various molecular weight and charge density ...
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