DE3334384A1 - Process for the secondary treatment of waste water - Google Patents

Process for the secondary treatment of waste water

Info

Publication number
DE3334384A1
DE3334384A1 DE19833334384 DE3334384A DE3334384A1 DE 3334384 A1 DE3334384 A1 DE 3334384A1 DE 19833334384 DE19833334384 DE 19833334384 DE 3334384 A DE3334384 A DE 3334384A DE 3334384 A1 DE3334384 A1 DE 3334384A1
Authority
DE
Germany
Prior art keywords
waste water
wastewater
pollutants
secondary treatment
added
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.)
Withdrawn
Application number
DE19833334384
Other languages
German (de)
Inventor
Manfred 6095 Ginsheim-Gustavsburg Steuer
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.)
WENDEL, MARTIN, 6470 BUEDINGEN, DE PANHOLZER, WOLF
Original Assignee
CHEMITEC GmbH
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 CHEMITEC GmbH filed Critical CHEMITEC GmbH
Priority to DE19833334384 priority Critical patent/DE3334384A1/en
Publication of DE3334384A1 publication Critical patent/DE3334384A1/en
Withdrawn legal-status Critical Current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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/28—Anaerobic digestion processes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Microbiology (AREA)
  • Inorganic Chemistry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

By addition of calcium sulphite (CaSO3) as a waste product from flue gas desulphurisation plants to the waste water, pollutants contained in the waste water are precipitated in a manner favourable in terms of costs.

Description

Beschreibungdescription

Die Erfindung betrifft ein Verfahren zur Behandlung von Abwässern. The invention relates to a method for treating waste water.

Die Schadstoffällmlg wird nach dem Stand der Technik durch Zugabe von Aluminiumsulfat oder Eisensulfat oder Kalk und ähnlichen chemischen Stoffen betrieben. According to the state of the art, the pollutants are added by adding of aluminum sulphate or iron sulphate or lime and similar chemical substances operated.

Die Zugabe derartiger Fällmittel ist verhältnismäßig teuer.The addition of such precipitants is relatively expensive.

Aufgabe der Erfindung ist es, ein Verfahren zur Schadstoffausfällung anzugeben, das kostenmäßig günstig ist. The object of the invention is to provide a method for the precipitation of pollutants indicate that is inexpensive in terms of cost.

Diese Aufgabe wird durch das Verfahren des Anspruches 1 gelöst. This object is achieved by the method of claim 1.

Dadurch, daß dem Abwasser ein Abfallprodukt aus Rauchgasentschwefelungsanlagen zugesetzt wird, wird einerseits, Nie gefunden wurde, ebenfalls eine Ausfällung von Schadstoffen erreicht, andererseits kosten diese Zuschlagstoffe (Calciumsulfit (CaS03)) nichts, da sie ein nicht ohne weiteres lagerbares Abfallprodukt der Rauchgasentschwefelungsanlagen darstellen, das für seine eigene Endlagerung zusätzlich Kosten verursacht. Because the wastewater is a waste product from flue gas desulphurisation systems is added, on the one hand, was never found, also a precipitation of Pollutants reached, on the other hand these additives cost (calcium sulfite (CaS03)) nothing, as it is a waste product from flue gas desulphurisation systems that cannot be easily stored represent, which causes additional costs for its own final disposal.

Es ist bekannt, daß im Abwasser Schlvefelbakterien rorhanden sind. Unter Einwirkung dieser Bakterien wird das Calciumsulfit (CaS03) umgewandelt in-Feinkall; (CaO), das in Verbindung mit Wasser (H20) in Kalkhydrat (Ca(0H)2) übergeht. Im so behandelten Abwasser werden Schadstoffe (z.B. Phosphate) ausgefällt. It is known that Schlvefelbacteria are found in the wastewater. Under the action of these bacteria, the calcium sulphite (CaS03) is converted into fines; (CaO) which, in combination with water (H20), turns into hydrated lime (Ca (OH) 2). Im so treated wastewater, pollutants (e.g. phosphates) are precipitated.

Claims (3)

Verfahren zur Behandlung von Abwasser Patentansprüche 1. Verfahren zur Schads-toffällung im Abwasser durch Zugabe von Zuschlagstoffen, dadurch gekennzeichnet, daß dem Abwasser ein Abfallprodukt aus zugegeben wird, das die Schadstoffe, insbesondere Phosphate, ausfallen läßt. Process for treating waste water Patent claims 1. Process for the precipitation of pollutants in wastewater by adding additives, characterized in that a waste product is added to the wastewater, the pollutants, in particular Phosphates, precipitates. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß dem Abwasser Calciumsulfit (CaSO3) beigegeben wird. 2. The method according to claim 1, characterized in that the waste water Calcium sulfite (CaSO3) is added. 3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichne daß im Abwasser vorhandene Schwefelbakterien das Sulfit aufnehme und im weiteren klärtechnischen Ablauf die Endbehandlung des Schwefelanteils im Faulturm erfolgt. 3. The method according to claim 1 or 2, characterized in that im Sulfur bacteria present in wastewater absorb the sulfite and further clarify Process the final treatment of the sulfur content takes place in the digestion tower.
DE19833334384 1983-09-23 1983-09-23 Process for the secondary treatment of waste water Withdrawn DE3334384A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19833334384 DE3334384A1 (en) 1983-09-23 1983-09-23 Process for the secondary treatment of waste water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833334384 DE3334384A1 (en) 1983-09-23 1983-09-23 Process for the secondary treatment of waste water

Publications (1)

Publication Number Publication Date
DE3334384A1 true DE3334384A1 (en) 1985-04-18

Family

ID=6209821

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19833334384 Withdrawn DE3334384A1 (en) 1983-09-23 1983-09-23 Process for the secondary treatment of waste water

Country Status (1)

Country Link
DE (1) DE3334384A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8802295A (en) * 1987-10-03 1989-05-01 Stadtwerke Wuerzburg Aktienges METHOD FOR CLEARING A SUSPENDED SUD IN THE WASTE WATER TREATMENT

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8802295A (en) * 1987-10-03 1989-05-01 Stadtwerke Wuerzburg Aktienges METHOD FOR CLEARING A SUSPENDED SUD IN THE WASTE WATER TREATMENT

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Legal Events

Date Code Title Description
8127 New person/name/address of the applicant

Owner name: KNEFEL, SIEGFRIED, DIPL.-MATH., 6330 WETZLAR, DE

8127 New person/name/address of the applicant

Owner name: WENDEL, MARTIN, 6470 BUEDINGEN, DE PANHOLZER, WOLF

8139 Disposal/non-payment of the annual fee