sludge dewatering Articles | Environmental XPRT

Blackburn Meadows wastewater treatment works

Blackburn Meadows wastewater treatment works is situated in Sheffield, the fourth largest city in England, in the county of South Yorkshire. This treatment plant has a fluidised bed incinerator in order to treat and dispose of the sludge. This paper gives a brief overview of the various stages and processes involved in effluent treatment at Blackburn Meadows and assesses the sludge disposal ...

Aug. 28, 2007

By Inderscience Publishers

Metropolitan Sewer District (MSD), Cincinnati, Ohio U.S.A.: HTFB System

The Metropolitan Sewer District (MSD) of Greater Cincinnati, Ohio is a 90 mgd primary treatment, 55 mgd activated sludge treatment plant. Solids processing includes gravity thickening of primary sludge, dissolved air flotation, thickening of secondary sludge, holding tank storage, belt filter press dewatering and pumping of cake to the old outdated multiple hearth ...

Feb. 14, 2008

By Degremont Technologies - a subsidiary of Suez Environnement

Xiaohongmen WWTP south-east Beijing

The second biggest sewage treatment plant in Beijing Capacity of plant Wastewater Treatment Plant: 600,000 m³/d Sludge production: volume of 60,000 m³/d DEWACO delivered a complete sludge dewatering solution consisting of: 8 nos. Belt Filter Press type NPD31L, 3,1m belt width, along with peripheral equipment. Project ...

May 25, 2011

By Dewaco OY

Putrajaya WWTP, Phase I & II, Kuala Lumpur

Design capacity of 300 000 P.E (phase 1) and 600 000 P.E. (phase II) DEWACO Supplied full package for the sludge dewatering comprise of: 2 nos. BT2025 + 2 nos.SP16L (each hydraulic capacity 45m3/hr), along with peripheral equipment for Phase I Project completion: 1998 2 nos. BT2525 + SP 21L(each hydraulic capacity 64m3/hr), along with peripheral equipment for ...

May 25, 2011

By Dewaco OY

Škvorec WWTP in Czech Republic - Case Study

Client's voice Since we had installed VOLUTE Dewatering Press in our waste water treatment plant I realized how much time we were wasting using dewatering bags. VOLUTE doesn´t need my presence and works fully automatically. I don´t sometimes even know that there is a dewatering unit in operation. Dewatering Data Sludge Type: Waste ...

Mar. 4, 2015

By AMCON Inc.

Effect of synthetic cationic surfactants on dewaterability and settleability of activated sludge

Dimeric cationic surfactants with different lengths of carbon chains were synthesised, and then these surfactants were added to the activated sludge samples to evaluate the dewaterability and settleability. The adsorbability of cationic surfactants on activated sludge was also studied. By comparing the dewatering performances of different cationic surfactants, the effect mechanisms of cationic ...

Apr. 7, 2009

By Inderscience Publishers

Pyrobustor - A Proven,Small-Scale, Biosolids-to-Energy Solution

27 municipalities in southern Germany set up a special-purpose entity called KSV GmbH for the specific purpose of disposing regional sewage sludge. The goals of this project were two-fold; eliminate the expensive cost of transporting sewage sludge over long distances and avoid incalculable costs by outsourcing sludge disposal. To achieve this, KSV GmbH installed the Pyrobustor® at the ...

Jan. 31, 2011

By Eisenmann

An analysis of the environmental management elements related to the improvements of the drying kinetics of waste activated sludge by Fenton peroxidation

Advanced sludge treatment processes (AST) reduce the amount of sludge produced and improve the dewaterability, thus probably also affecting the heat transfer properties and the drying characteristics of the sludge. This paper studies the influence of the Fenton peroxidation on the thermal conductivity of the sludge. Results demonstrate that the Fenton's peroxidation improves the sludge cake ...

Sep. 15, 2005

By Inderscience Publishers

Volute Dewatering Press reduces the sludge disposal cost by 75%! (CANADA)

PROBLEM Widely known company Cargill Meat Solutions was looking for a solution for their sludge processing issues.　Every day the thickened sludge had to be removed and the annual carrier cost was over $1,200,000. Furthermore, they needed to pay additional $20,000 for labor and handling ...

Jun. 30, 2011

By AMCON Inc.

Wastewater from metal finishing industry set for more regulation from the Environmental Protection Agency

The U.S. Environmental Protection Agency (EPA) recently released its preliminary 2014 Effluent (liquid waste or sewage discharged into a river or sea) Guidelines Program, which outlined more regulations for wastewater from those within the metal finishing industry. A filter press has been a long-trusted solution for treating metal waste, even for those applications that are difficult to dewater. ...

Oct. 20, 2014

By M.W. Watermark LLC

Oil Field Sludge Dewatering

An oil field contract dewatering company was unable to dewater the oily/water/solids from several oil field storage tanks using conventional coagulants/flocculants. The swings in solids loading and oil content made it very difficult to control the correct dosage rate as conventional chemistry has a very tight tolerance to maintain a dewaterable floc. The result was an ongoing blinding problem for ...

Jan. 29, 2009

By Integrated Engineers Inc.

"The maintenance works now became much easier." (US)

This sewage treatment plant had always faced problems with the belt press which had been installed. The end-user had not only had problems with high cost for water consumption but also had maintenance issues arising out of frequently caused clogging problems. Moreover, since this plant mixes sludge cake with wood chips for composting, there had also been an issue concerning the dryness of sludge ...

Mar. 31, 2009

By AMCON Inc.

Impact of Polymer Type and Dose on the Fate and Survival of Fecal Coliform during Centrifuge Dewatering

Recent studies reported significant increases in indicator bacteria counts in anaerobically digested sludge samples during and shortly after centrifugal dewatering. The reasons behind the observed increases are not yet well-understood. This study investigated the effect of centrifuge shear and polymer addition on the fecal coliform counts measured after centrifugation. Centrifuge shear and ...

Oct. 12, 2007

By Water Environment Federation (WEF)

WWTP Quesna, Mubarak Industrial City

During Phase I of the project, DEWACO delivered a complete sludge dewatering solution for comprising of: 3 nos. Belt Filter presses type NPD31L (3.1m belt width) and all other peripheral equipment including polymer preparation and post dilution, pups, conveyors, PLC etc. for dewatering and 4 sets of chain and flight type sludge and scum collectors ( dimensions: 36m L x 5,5m W x 2,35m ...

May 25, 2011

By Dewaco OY

Rural community sewerage case study

Succeeded in "zero-emission" of sludge Previously, sludge was vacuumed out in this treatment plant without being dewatered; however, the cost for sludge treatment was huge. Thus, aiming at "zero-emission" of sludge, fermentation of the sludge was being considered. AMCON's offer for a solution They introduced Dell Compo, which can treat sludge ...

Mar. 6, 2014

By AMCON Inc.

Anaerobic thermophilic digestion of sewage sludge with a thickened sludge recycle

The process of anaerobic thermophilic digestion of municipal wastewater sludge with a recycled part of thickened digested sludge, was studied in semi-continuous laboratory digesters. This modified recycling process resulted in increased solids retention time (SRT) with the same hydraulic retention time (HRT) as compared with traditional digestion without recycling. Increased SRT without ...

Dec. 31, 2011

By IWA Publishing

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 ...

Oct. 23, 2018

By Yangzhou Maoyuan Environmental Protection Technology Co.,Ltd

Pacific place contaminated groundwater treatment facility

Location: Vancouver, B.C. Owner: B.C. Ministry of Environment, Lands and Parks Description: This $1.5 million facility is capable of treating 135 L/min of contaminated groundwater, removing primarily BTEX and PAH. Through aeration, pH adjustment, and polymer addition, flocculation and settling, the majority of the contaminants are removed. ...

Oct. 9, 2012

By NovaTec Consultants Inc.

Septic Tank for Commercial Building (Ukraine (2))

As for this septic tank, thickened sludge had been pumped to a tanker truck for disposal 2-3 times a month. However, there had been longstanding concerns confronted by the end user. Their concerns were not only the high sludge disposal cost but also the odor which comes along with the presence of a tanker truck. They had looked for a suitable sludge dewatering unit for small-scale wastewater ...

Mar. 31, 2009

By AMCON Inc.

Lead Plating

A Midwest company is plating lead and etching the material with an HCl batch. The resultant wastewater had a lead concentration of 2,000-4,000 ppm. Traditional chemistry (pH adjustment to 9.8, coagulation/flocculation) could only decrease the concentration to 5.0 ppm. The facility was had to retreat the wastewater and only then could reach a lead level of 3.0 ppm. With the use of the ...

Jan. 28, 2009

By Integrated Engineers Inc.

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