ES2126480A1 - Process for decontaminating wastewater through the action of calcium hydroxide in concentrations close to saturation and subsequent neutralisation with carbon dioxide - Google Patents

Process for decontaminating wastewater through the action of calcium hydroxide in concentrations close to saturation and subsequent neutralisation with carbon dioxide

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Publication number
ES2126480A1
ES2126480A1 ES09600603A ES9600603A ES2126480A1 ES 2126480 A1 ES2126480 A1 ES 2126480A1 ES 09600603 A ES09600603 A ES 09600603A ES 9600603 A ES9600603 A ES 9600603A ES 2126480 A1 ES2126480 A1 ES 2126480A1
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Spain
Prior art keywords
carbon dioxide
calcium hydroxide
wastewater
saturation
action
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.)
Granted
Application number
ES09600603A
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Spanish (es)
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ES2126480B1 (en
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Individual
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Individual
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Priority to ES9600603A priority Critical patent/ES2126480B1/en
Publication of ES2126480A1 publication Critical patent/ES2126480A1/en
Application granted granted Critical
Publication of ES2126480B1 publication Critical patent/ES2126480B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

Process for decontaminating wastewater through the action of calcium hydroxide in concentrations close to saturation and subsequent neutralisation with carbon dioxide, originating from stormwater drains, giving rise to the precipitation of sludge and calcium carbonate. These processes are characterised by the use of calcium hydroxide in the treatment of wastewater in quantities which may be greater than those currently in use, that is in quantities which give rise to a pH of more than 10, which is the maximum pH currently permitted by the legislation applicable to industrial wastes, and then precipitating and separating the sludges, subsequent neutralisation with carbon dioxide originating from combustion gases. Has application for wastewater containing organic matter.
ES9600603A 1996-03-07 1996-03-07 PROCESSES OF DECONTAMINATION OF WASTE WATER BY ACTION OF CALCIUM HYDROXIDE AT CONCENTRATIONS NEAR SATURATION AND SUBSEQUENT NEUTRALIZATION WITH CARBON DIOXIDE. Expired - Lifetime ES2126480B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES9600603A ES2126480B1 (en) 1996-03-07 1996-03-07 PROCESSES OF DECONTAMINATION OF WASTE WATER BY ACTION OF CALCIUM HYDROXIDE AT CONCENTRATIONS NEAR SATURATION AND SUBSEQUENT NEUTRALIZATION WITH CARBON DIOXIDE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES9600603A ES2126480B1 (en) 1996-03-07 1996-03-07 PROCESSES OF DECONTAMINATION OF WASTE WATER BY ACTION OF CALCIUM HYDROXIDE AT CONCENTRATIONS NEAR SATURATION AND SUBSEQUENT NEUTRALIZATION WITH CARBON DIOXIDE.

Publications (2)

Publication Number Publication Date
ES2126480A1 true ES2126480A1 (en) 1999-03-16
ES2126480B1 ES2126480B1 (en) 1999-12-01

Family

ID=8294153

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9600603A Expired - Lifetime ES2126480B1 (en) 1996-03-07 1996-03-07 PROCESSES OF DECONTAMINATION OF WASTE WATER BY ACTION OF CALCIUM HYDROXIDE AT CONCENTRATIONS NEAR SATURATION AND SUBSEQUENT NEUTRALIZATION WITH CARBON DIOXIDE.

Country Status (1)

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ES (1) ES2126480B1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0536908A1 (en) * 1991-10-09 1993-04-14 Kureha Kagaku Kogyo Kabushiki Kaisha Method of improving city water and an apparatus therefor
US5376343A (en) * 1992-02-26 1994-12-27 Pretoria Portland Cement Company Limited Production of purified calcium carbonate

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0536908A1 (en) * 1991-10-09 1993-04-14 Kureha Kagaku Kogyo Kabushiki Kaisha Method of improving city water and an apparatus therefor
US5376343A (en) * 1992-02-26 1994-12-27 Pretoria Portland Cement Company Limited Production of purified calcium carbonate

Also Published As

Publication number Publication date
ES2126480B1 (en) 1999-12-01

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