GB425858A - Treating sewage - Google Patents

Treating sewage

Info

Publication number
GB425858A
GB425858A GB15259/34A GB1525934A GB425858A GB 425858 A GB425858 A GB 425858A GB 15259/34 A GB15259/34 A GB 15259/34A GB 1525934 A GB1525934 A GB 1525934A GB 425858 A GB425858 A GB 425858A
Authority
GB
United Kingdom
Prior art keywords
matter
flocculated
sewage
separated
ferric sulphate
Prior art date
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 the accuracy of the status listed.)
Expired
Application number
GB15259/34A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MEDLEY GORDON BRITTAIN WHELPLE
MURRY GUGGENHEIM
SIMON GUGGENHEIM
SOLOMON ROBERT GUGGENHEIM
Original Assignee
MEDLEY GORDON BRITTAIN WHELPLE
MURRY GUGGENHEIM
SIMON GUGGENHEIM
SOLOMON ROBERT GUGGENHEIM
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MEDLEY GORDON BRITTAIN WHELPLE, MURRY GUGGENHEIM, SIMON GUGGENHEIM, SOLOMON ROBERT GUGGENHEIM filed Critical MEDLEY GORDON BRITTAIN WHELPLE
Publication of GB425858A publication Critical patent/GB425858A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00—Pretreatment
    • F23G2201/10—Drying by heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/12—Sludge, slurries or mixtures of liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2900/00—Special features of, or arrangements for incinerators
    • F23G2900/52001—Rotary drums with co-current flows of waste and gas

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

To separate putrescible suspended matter from sewage, the matter is coagulated by adding a compound of a trivalent metal, such as ferric sulphate, and agitating with air during a detention period of several minutes, and flocculated by addition of lime or other alkali and further agitation with air. The amount of coagulating agent used is such that the sewage at the completion of the coagulating treatment has a pH value not less than 5. The flocculated matter is removed by causing the liquid to pass upward through accumulated sludge. The separated sludge is thickened, dehydrated by means of a suction filter and then passed through rotary drying and incinerating apparatus. Gases from the incinerating apparatus pass in contact with the material in the drying apparatus. The ash resulting from incineration is treated with sulphuric acid to recover ferric sulphate for repeated use in the process. Effluent from which the flocculated matter has been separated may be subjected to a base-exchange treatment, as described in Specification 410,607. U.S.A. Specification 1,886,267 also is referred to.
GB15259/34A 1933-05-22 1934-05-22 Treating sewage Expired GB425858A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US425858XA 1933-05-22 1933-05-22

Publications (1)

Publication Number Publication Date
GB425858A true GB425858A (en) 1935-03-22

Family

ID=21922701

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15259/34A Expired GB425858A (en) 1933-05-22 1934-05-22 Treating sewage

Country Status (1)

Country Link
GB (1) GB425858A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2591584A1 (en) * 1985-09-16 1987-06-19 Air Liquide Sewage treatment process and plant
FR2591585A1 (en) * 1985-09-16 1987-06-19 Air Liquide Process and plant for packaging residual sludge
NL8802295A (en) * 1987-10-03 1989-05-01 Stadtwerke Wuerzburg Aktienges METHOD FOR CLEARING A SUSPENDED SUD IN THE WASTE WATER TREATMENT
CN103011536A (en) * 2012-12-11 2013-04-03 张家港市华源染织有限公司 Printing and dyeing sludge treatment method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2591584A1 (en) * 1985-09-16 1987-06-19 Air Liquide Sewage treatment process and plant
FR2591585A1 (en) * 1985-09-16 1987-06-19 Air Liquide Process and plant for packaging residual sludge
NL8802295A (en) * 1987-10-03 1989-05-01 Stadtwerke Wuerzburg Aktienges METHOD FOR CLEARING A SUSPENDED SUD IN THE WASTE WATER TREATMENT
CN103011536A (en) * 2012-12-11 2013-04-03 张家港市华源染织有限公司 Printing and dyeing sludge treatment method

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