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sewage purification plant and process thereof

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Patent US5362395 - Method and apparatus for …

Biologically purifying sewage which is organically loaded with substances that are difficult to decompose biologically or are not decomposable biologically has the substances that are difficult to decompose biologically or are not ...

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Patent US4721585 - Process for the biological treatment …

BACKGROUND OF THE INVENTION A process is disclosed for purification of sewage by biological means. A significant problem connected with sewage disposal is that the sewage contains dissolved phosphorus and nitrogen which ...

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Sewage treatment method and equipment thereof

The present invention discloses a sewage treatment method and its installation. Said method incldues the following steps: firstly, making sewage pass through settling pond to removing hard grain and suspension; then feeding the ...

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Patent US3468795 - Process and plant for biological ...

Process and plant for biological purification of waste water and sewage US 3468795 A Zusammenfassung auf verfügbar Bilder (1) Ansprüche ...

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Patent EP0220142A1 - A sewage-water purifying process ...

A water purifying method, particularly a sewage purification method, for elimi nating nitrogen therefrom, in which a) the water is subjected to a preprecipitation process with the aid of triva lent and/or multivalent metal salts for ...

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Paten US2348126 - Sewage purification - Google Paten

It is very necessary in sewage plant operation to carefully control all factors and conditions of the plantin order to prevent undesirable putrefaction in some stage of the process or part of the apparatus. There are ordinarily two ...

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Patent US4732679 - Sewage-water purifying process ...

1988/03/22· A water purifying method, particularly a sewage purification method, for eliminating nitrogen therefrom, in which (a) the water is subjected to a preprecipitation process with the aid of trivalent and/or multivalent metal salts ...

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Patent US5614102 - Method for purifying sewage - …

1. A method for purifying sewage comprising treating said sewage with flocculants in a purification tank and purifying an exhaust gas containing CO 1-3, NO 1-5 or SO 1-3 by introduction thereof into the sewage, wherein the ...

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Patente US3756946 - Sewage treatment process - …

Sept. 4,v 1973 G. v LEvlN UAL sEwAGfEl TREATMENT PROCESS mrmmorm 8 3 LVM 39am-1s :nomas m nm. mfmo l O A S d w .J. .J a E x25 E @23.5% v zE. 292mg Y zoowm m w United States Patent O 3,756,946 SEWAGE ...

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PROCESS DESIGN OF PLANT WASTE WATER …

KLM Technology Group Project Engineering Standard PROCESS DESIGN OF PLANT WASTE WATER SEWER SYSTEMS (PROJECT STANDARDS AND SPECIFICATIONS) Page 3 of 67 Rev: 01 April 2011 SCOPE This Project ...

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Operation and Maintenance Manual for Waste …

OPERATION AND MAINTENANCE MANUAL FOR WASTE WATER TREATMENT WORKS DPW’s BASIC REQUIREMENTS 2 CONTENTS DESCRIPTION PAGE 1 Purpose of Manual 3 2 General 2.1 2.2 Responsibility 3 ...

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Patent US3476683 - Methods of separating inorganic ...

Methods of separating inorganic impurities from sewage and of making a soil improving composition from the impurities separated US 3476683 A Samenvatting beschikbaar in het Afbeeldingen (1) ...

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Patent US3476683 - Methods of separating inorganic ...

Nov. 4, 1969 LILJEGREN 3,476,683 J. METHODS OF SEPARATING INORGANIC IMPURITIES FROM SEWAGE AND OF MAKING A SOIL IMPROVING COMPOSITION FROM THE IMPURITIES SEPARATED Filed May 20. 1968 ...

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US3461067A - Process for the purification of sewage plant ...

Prior art keywords iron ion sewage plant phosphate Prior art date 1966-08-23 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to ...

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Montreal upgrading wastewater treatment with ozone ...

2015/03/23· The Jean-R. Marcotte wastewater treatment plant in Rivière-des-Prairies will be the world's largest waste water treatment plant to use ozone when the new system is up and running in 2018.

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Patent US6743362 - Sewage treatment process - Google Patents

1. In a sewage treatment plant and process having a liquid side in which nitrogen removal is effected, a method of operating the liquid side of the treatment process so as to effect nitrification and denitrification within a single tank and ...

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Anaerobic digestion—IV. The application of the process …

Anaerobic digestion is used extensively for stabilisation of sewage sludge and more recently, to a limited extent, for industrial effluents. Present investigations have demonstrated the practical feasibility of the process for specific ...

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Discontinuance of Utility Service and Wastewater …

(e) Before water service is discontinued under subsection (d), the board must give written notice to the water consumer or property owner of its intention to discontinue water service if the unpaid sewer or sewage disposal plant service

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Patent US6712970 - Sewage treatment process with ...

2004/03/30· In the liquid side of sewage treatment process, a combination aerobic/anoxic stage is closely monitored such that phosphorus can be removed as well as nitrogen. As in a known process, the aerobic/anoxic stage is monitored as ...

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Patent US20100032369 - Sewage purification plant and ...

Plant and procedure thereof for the purification of sewage that enables the sewage to be purified and energy to be obtained, and at the same time enables a product to be obtained given by the combination of organic residues and fibre ...

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Method for operating a biological sewage purification plant

1983/09/27· A method and apparatus for operating a biological sewage purification plant wherein the water to be treated is aerated in a tank containing bacteria by means of a rotating impeller or the like, characterized in that a heating ...

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Patent US2348126 - Sewage purification - Google Patents

May 2, 1944. w. H. GREEN 2,348,125 ' SEWAGE PURIFICATION Filed July 24,-1941 2 Sheets-Sheet '1 v INVENT OR. W ZZarH G 672, May 2, 1944. w. H. GREEN 2,348,126

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Patent US3756946 - Sewage treatment process - Google Patents

Try the new Google Patents, with machine-classified Google Scholar results, and Japanese and South Korean patents.

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Patent US5624564 - Process for dehydration and ...

In a process for dehydration and concentration of sewage sludge containing activated sludge with the aid of organic and/or inorganic flocculators, the activated sludge content is produced in an aerated biological purification stage in ...

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Patent US3567629 - Process and plant for treating sewage ...

March 2, 1971 AYERS ET AL. PROCESS AND PLANT FOR TREATING SEWAGE Filed June 9 PFHOR ART RECIRCUL ATED \JQUID RAW FEED TRiCKLE Fl LTER DRAFT TUBE LAUNDER OVQRFLOW/ SUM NEY S m mW N ...

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Sewage delivery for an activated sludge process

1992/11/27· A plant suitable, in particular, for denitrifying sewage purification by the activated sludge process comprises several tanks which are charged with untreated water via a common delivery conduit which is preferably ...

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TOWARDS AN APPROPRIATE FRAMEWORK FOR …

TOWARDS AN APPROPRIATE FRAMEWORK FOR THE SELECTION OF SUSTAINABLE SEWAGE PURIFICATION PROCESSES IN SOUTH AFRICA du Toit Human* and Alan C Brent* * Graduate School of Technology ...

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SEWAGE PURIFICATION PLANT AND PROCESS THEREOF

2010/02/11· Plant and procedure thereof for the purification of sewage that enables the sewage to be purified and energy to be obtained, and at the same time enables a product to be obtained given by the combinat

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SEWAGE PURIFICATION PLANT AND PROCESS THEREOF

United States Application US20100032369 Note: If you have problems viewing the PDF, please make sure you have the latest version of Adobe Acrobat. [ …

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