DE20200237U1 - Backwashing agent for filter beds for water treatment in swimming pool, drinking and wastewater treatment plants - Google Patents

Backwashing agent for filter beds for water treatment in swimming pool, drinking and wastewater treatment plants

Info

Publication number
DE20200237U1
DE20200237U1 DE20200237U DE20200237U DE20200237U1 DE 20200237 U1 DE20200237 U1 DE 20200237U1 DE 20200237 U DE20200237 U DE 20200237U DE 20200237 U DE20200237 U DE 20200237U DE 20200237 U1 DE20200237 U1 DE 20200237U1
Authority
DE
Germany
Prior art keywords
drinking
water treatment
swimming pool
filter beds
backwashing agent
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 - Lifetime
Application number
DE20200237U
Other languages
German (de)
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.)
WIEGAND, RALPH, DE
Original Assignee
HYDRO CHEMIE 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 HYDRO CHEMIE GmbH filed Critical HYDRO CHEMIE GmbH
Priority to DE20200237U priority Critical patent/DE20200237U1/en
Publication of DE20200237U1 publication Critical patent/DE20200237U1/en
Priority to DE20221961U priority patent/DE20221961U1/en
Priority to DE10252198A priority patent/DE10252198A1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D41/00—Regeneration of the filtering material or filter elements outside the filter for liquid or gaseous fluids
    • B01D41/02—Regeneration of the filtering material or filter elements outside the filter for liquid or gaseous fluids of loose filtering material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/46—Regenerating the filtering material in the filter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/08—Regeneration of the filter
    • B01D2201/085—Regeneration of the filter using another chemical than the liquid to be filtered

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)
  • Removal Of Specific Substances (AREA)

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (3)

1. Rückspülmittel für Filterbetten zur Wasseraufbereitung bei Schwimmbad-, Trink- und Abwasseraufbereitungsanlagen gekennzeichnet durch die Kombination einer wässrigen Lösung eines Copolymerisats von Acrolein und Formaldehyd mit einem Polyoxycarbonsäuresalz der Formel (C3H4O2 C3H4O)x × Metallion1. Backwashing agent for filter beds for water treatment in swimming pool, drinking and waste water treatment plants characterized by the combination of an aqueous solution of a copolymer of acrolein and formaldehyde with a polyoxycarboxylic acid salt of the formula (C 3 H 4 O 2 C 3 H 4 O) x × metal ion 2. Rückspülmittel nach Anspruch 1, dadurch gekennzeichnet, dass es auf wässriger Basis auf 30 Liter Gesamtvolumen 3,5 Liter einer 30%-igen Polyoxycarbonsäure und 0,2 Liter Copolymerisat von Acrolein und Formaldehyd enthält.2. Backwashing agent according to claim 1, characterized, that it is water-based to 30 liters total volume 3.5 liters a 30% polyoxycarboxylic acid and 0.2 liters of copolymer of acrolein and formaldehyde. 3. Rückspülmittel nach Anspruch 1-2, dadurch gekennzeichnet, dass die Polyoxycarbonsäure in Gestalt ihres Natriumsalzes mit der allgemeinen Formel (C3H4O2 C3H4O)x × Na enthält.3. Backwashing agent according to claim 1-2, characterized in that the polyoxycarboxylic acid in the form of its sodium salt with the general formula (C 3 H 4 O 2 C 3 H 4 O) x × Na.
DE20200237U 2002-01-09 2002-01-09 Backwashing agent for filter beds for water treatment in swimming pool, drinking and wastewater treatment plants Expired - Lifetime DE20200237U1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE20200237U DE20200237U1 (en) 2002-01-09 2002-01-09 Backwashing agent for filter beds for water treatment in swimming pool, drinking and wastewater treatment plants
DE20221961U DE20221961U1 (en) 2002-01-09 2002-11-09 Backwash for filter beds for water treatment in swimming pool, drinking and wastewater treatment plants
DE10252198A DE10252198A1 (en) 2002-01-09 2002-11-09 Backflush medium for filter beds in water treatment plants comprises aqueous solution of acrolein-formaldehyde copolymer and polyoxycarboxylic acid salt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE20200237U DE20200237U1 (en) 2002-01-09 2002-01-09 Backwashing agent for filter beds for water treatment in swimming pool, drinking and wastewater treatment plants

Publications (1)

Publication Number Publication Date
DE20200237U1 true DE20200237U1 (en) 2002-05-23

Family

ID=7966369

Family Applications (3)

Application Number Title Priority Date Filing Date
DE20200237U Expired - Lifetime DE20200237U1 (en) 2002-01-09 2002-01-09 Backwashing agent for filter beds for water treatment in swimming pool, drinking and wastewater treatment plants
DE10252198A Withdrawn DE10252198A1 (en) 2002-01-09 2002-11-09 Backflush medium for filter beds in water treatment plants comprises aqueous solution of acrolein-formaldehyde copolymer and polyoxycarboxylic acid salt
DE20221961U Expired - Lifetime DE20221961U1 (en) 2002-01-09 2002-11-09 Backwash for filter beds for water treatment in swimming pool, drinking and wastewater treatment plants

Family Applications After (2)

Application Number Title Priority Date Filing Date
DE10252198A Withdrawn DE10252198A1 (en) 2002-01-09 2002-11-09 Backflush medium for filter beds in water treatment plants comprises aqueous solution of acrolein-formaldehyde copolymer and polyoxycarboxylic acid salt
DE20221961U Expired - Lifetime DE20221961U1 (en) 2002-01-09 2002-11-09 Backwash for filter beds for water treatment in swimming pool, drinking and wastewater treatment plants

Country Status (1)

Country Link
DE (3) DE20200237U1 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3229219C2 (en) 1982-08-05 1985-06-20 Klaus Jürgen Robert 6806 Viernheim Westram Use of a surface-active substance as a backwashing agent for backwashable filter beds containing particles

Also Published As

Publication number Publication date
DE10252198A1 (en) 2003-07-17
DE20221961U1 (en) 2009-12-10

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20020627

R150 Term of protection extended to 6 years

Effective date: 20050203

R081 Change of applicant/patentee

Owner name: WIEGAND, RALPH, DE

Free format text: FORMER OWNER: HYDRO CHEMIE GMBH, 68519 VIERNHEIM, DE

Effective date: 20071211

R151 Term of protection extended to 8 years

Effective date: 20080123

R158 Lapse of ip right after 8 years

Effective date: 20100803