CN101298348A - Method for purifying sewage by using ozone and purified diatomite together - Google Patents
Method for purifying sewage by using ozone and purified diatomite together Download PDFInfo
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- CN101298348A CN101298348A CNA2008100266298A CN200810026629A CN101298348A CN 101298348 A CN101298348 A CN 101298348A CN A2008100266298 A CNA2008100266298 A CN A2008100266298A CN 200810026629 A CN200810026629 A CN 200810026629A CN 101298348 A CN101298348 A CN 101298348A
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Abstract
The invention relates to a wastewater purification method with ozone and diatemite, the wastewater shall be pretreated to reduce the organic pollutant content to a level of less than 500mg/L, the dosage of the ozone is 10-80mg/L, the dosage of the diatemite is 50-400 mg/L, the PH value of the wastewater shall be regulated to 7.5-8.5, the reaction temperature is normal temperature, the reaction time is 10-50 minutes, and the ozone and the diatemite are added according to the dosage directly for reaction. The method has the advantages that no secondary pollution can be caused. The diatemite after the reaction can be reused after being treated by the activation process.
Description
Technical field:
The invention belongs to sewage water treatment method, what be specifically related to is the method that a kind of ozone, diatomite combined utilization are purified waste water.
Background technology:
The pollution of current environment, especially the pollution of trade effluent, rivers have been made so that very serious pollution is suffered in the marine site, and the improvement technology of contamination containment still is in and has only " parry sb.'s blows ", the degree that can not thoroughly deal with problems, most factory, enterprise, especially plating, electrolysis of having had Sewage treatment systems or a device, butcher, industry such as printing and dyeing, actual draining is up to standard all to be in unsteady state or only to have part index number up to standard, but also produces secondary pollution.Pollutent is divided into two big monoids usually: the one, and organic pollutant comprises germ, virus, microorganism and virulent CN-acid group class.Another kind of mainly is the pollutent of heavy metal (containing radioactive substance) and ion formation thereof for inorganics.On the development history of sewage purification technology, at first adopt physical chemistry method, owing to fail to solve in the sewage and NH comprehensively
3The problem up to standard of pollutents such as-N and develop biochemical method, in the past in the time of decades, biochemical method and biochemistry, materialization combined utilization solve the sewage purification problem really preferably, but also show many unsurmountable difficulties, as biochemical treatment take up an area of too many, handle consuming time oversize, can't degrade to the ring texture organism, finally also stay many " cancer ".Be used for degrading microbial survival, grow up, duplicate the strict conditions such as temperature value that all need, often can not reach or grasp these conditions in actual applications and cause microbial death, do not reach the effect of biochemical treatment at all, as the biochemical treatment of dyeing and printing sewage, often microorganism can't survive or be poisoned to death at all or high temperature (as silk-screen sewage often about 55 ℃) scalds dead down in the dyeing and printing sewage of high density.And may not use biochemical method in industrial sewage, handling as industrial sewages such as electrolysis, electrodeposit, phosphatizations, and employed now physical chemistry method is failed the discharging of comprehensive stably reaching standard, calls expectation and goal in research that novel method produces becomes numerous sewage purification workers.So working out cover novel method and a new installation reaches thoroughly, does not produce secondary pollution again than the stably reaching standard discharging and become urgent requirements of the times and task.
Summary of the invention:
At the defective that prior art exists, the purpose of this invention is to provide and a kind ofly can overcome above-mentioned defective, the sewage water treatment method that can effectively purify waste water
The present invention solves the technical scheme that its technical problem takes: the method that a kind of ozone, diatomite combined utilization are purified waste water, described sewage is that pre-treatment is to the sewage of organic pollutant content less than 500mg/L, the dosage of described ozone is 10-80mg/L, the diatomite dosage is 50-400mg/L, sewage PH transfers to 7.5-8.5, temperature is a normal temperature, reaction times 10-50 minute, ozone, diatomite is directly dropped into reaction by dosage.
The inventive method using ozone can reach under appropriate condition and under the dosage of capacity removes the purpose of organism (comprising difficult degradation ring-type organism and germ, virus type microorganism) to stably reaching standard, and promptly COD can stablize and drops to below the 90mg/L.And to NH
3, H
2The oxidation of reductive pollutants such as S, CN-is removed.And the pollutent of inorganics mainly is various heavy metal ion, as: Mn
2+, Cr
3+, CrO
4 2-, NI
2+, Cu
2+Or the like under the absorption of diatomite and flocculation, removed.The advantage of present method is can not produce secondary pollution.Reacted diatomite can be practical repeatedly after handling through activation procedure.
Embodiment:
The method that a kind of ozone, diatomite combined utilization are purified waste water, it is characterized in that described sewage is that pre-treatment is to the sewage of organic pollutant content less than 500mg/L, pretreatment process is a known technology, as the Fenton reagent method, or cooperate lime etc. with ferrous sulfate, the dosage of described ozone is 10-80mg/L, the diatomite dosage is 50-400mg/L, sewage PH transfers to 7.5-8.5, temperature is a normal temperature, reaction times 10-50 minute, ozone, diatomite are directly dropped into reaction by dosage.
The method that a kind of ozone, diatomite combined utilization are purified waste water is that described method can contain a secondary ozone/diatomite reaction process, and its ozone and diatomite are the 20%-50% of first step reaction dosage by dosage.
Preferably, the dosage of described ozone is 20-60mg/L, and the diatomite dosage is 100-200mg/L, and sewage PH transfers to 7.5-8.5, and temperature is a normal temperature, reaction times 20-30 minute.
A kind of ozone, diatomite combined utilization purify the method for washing bay waste water, and the dosage of described ozone is 60mg/L, and the diatomite dosage is 100mg/L, sewage PH transfers to 7.5, temperature is a normal temperature, in 30 minutes reaction times, ozone, diatomite is directly dropped into reaction by dosage.
Plant the method for ozone, diatomite combined utilization purification phosphorized waste water, the dosage of described ozone is 20mg/L, and the diatomite dosage is 200mg/L, sewage PH transfers to 8.34, temperature is a normal temperature, in 30 minutes reaction times, ozone, diatomite is directly dropped into reaction by dosage.
A kind of ozone, diatomite combined utilization purify the method for signboard of metal product wash water, the dosage of described ozone is 60mg/L, the diatomite dosage is 100mg/L, sewage PH transfers to 7.5, temperature is a normal temperature, in 30 minutes reaction times, ozone, diatomite are directly dropped into reaction by dosage.
A kind of ozone, diatomite combined utilization purify the method for electroplating wastewater, and the dosage of described ozone is 60mg/L, and the diatomite dosage is 200mg/L, sewage PH transfers to 7.5, temperature is a normal temperature, in 30 minutes reaction times, ozone, diatomite is directly dropped into reaction by dosage; Secondary ozone/diatomite reaction process, its ozone and diatomite are 25% of first step reaction dosage by dosage.
Claims (7)
1. method that ozone, diatomite combined utilization are purified waste water, it is characterized in that described sewage is that pre-treatment is to the sewage of organic pollutant content less than 500mg/L, the dosage of described ozone is 10-80mg/L, the diatomite dosage is 50-400mg/L, sewage PH transfers to 7.5-8.5, temperature is a normal temperature, reaction times 10-50 minute, ozone, diatomite is directly dropped into reaction by dosage.
2. the method for purifying waste water by the described ozone of claim 1, diatomite combined utilization, it is characterized in that described method can contain a secondary ozone/diatomite reaction process, its ozone and diatomite are the 20%-50% of first step reaction dosage by dosage.
3. the method for purifying waste water by the described ozone of claim 2, diatomite combined utilization is characterized in that, preferably, the dosage of ozone is 20-60mg/L, and the diatomite dosage is 100-200mg/L, and sewage PH transfers to 7.5-8.5, temperature is a normal temperature, reaction times 20-30 minute.
4. an ozone, diatomite combined utilization purify the method for washing bay waste water, and the dosage of described ozone is 60mg/L, and the diatomite dosage is 100mg/L, sewage PH transfers to 7.5, temperature is a normal temperature, in 30 minutes reaction times, ozone, diatomite is directly dropped into reaction by dosage.
5. an ozone, diatomite combined utilization purify the method for phosphorized waste water, and the dosage of described ozone is 20mg/L, and the diatomite dosage is 200mg/L, sewage PH transfers to 8.34, temperature is a normal temperature, in 30 minutes reaction times, ozone, diatomite is directly dropped into reaction by dosage.
6. an ozone, diatomite combined utilization purify the method for signboard of metal product wash water, the dosage of described ozone is 60mg/L, the diatomite dosage is 100mg/L, sewage PH transfers to 7.5, temperature is a normal temperature, in 30 minutes reaction times, ozone, diatomite are directly dropped into reaction by dosage.
7. an ozone, diatomite combined utilization purify the method for electroplating wastewater, the dosage of described ozone is 60mg/L, the diatomite dosage is 200mg/L, sewage PH transfers to 7.5, temperature is a normal temperature, in 30 minutes reaction times, ozone, diatomite is directly dropped into reaction by dosage, secondary ozone/diatomite reaction process, its ozone and diatomite are 25% of first step reaction dosage by dosage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100266298A CN101298348A (en) | 2008-03-07 | 2008-03-07 | Method for purifying sewage by using ozone and purified diatomite together |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100266298A CN101298348A (en) | 2008-03-07 | 2008-03-07 | Method for purifying sewage by using ozone and purified diatomite together |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101298348A true CN101298348A (en) | 2008-11-05 |
Family
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| CNA2008100266298A Pending CN101298348A (en) | 2008-03-07 | 2008-03-07 | Method for purifying sewage by using ozone and purified diatomite together |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MD4142C1 (en) * | 2010-10-12 | 2012-07-31 | Inst De Chimie Al Academiei De Stiinte A Moldovei | Process for water purification from hydrogen sulfide and sulfides |
| CN104909518A (en) * | 2015-06-10 | 2015-09-16 | 山西科元晟地科技有限公司 | Device and treatment method for treating and recycling car washing wastewater by using diatomite |
| CN104961294A (en) * | 2015-06-10 | 2015-10-07 | 山西科元晟地科技有限公司 | Apparatus for treating reverse osmosis strong brine by using purified diatomite bio-system, and method thereof |
| CN109231642A (en) * | 2018-09-25 | 2019-01-18 | 安顺优品洗涤有限公司 | A kind of purification method of wash water |
-
2008
- 2008-03-07 CN CNA2008100266298A patent/CN101298348A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MD4142C1 (en) * | 2010-10-12 | 2012-07-31 | Inst De Chimie Al Academiei De Stiinte A Moldovei | Process for water purification from hydrogen sulfide and sulfides |
| CN104909518A (en) * | 2015-06-10 | 2015-09-16 | 山西科元晟地科技有限公司 | Device and treatment method for treating and recycling car washing wastewater by using diatomite |
| CN104961294A (en) * | 2015-06-10 | 2015-10-07 | 山西科元晟地科技有限公司 | Apparatus for treating reverse osmosis strong brine by using purified diatomite bio-system, and method thereof |
| CN104909518B (en) * | 2015-06-10 | 2017-02-22 | 山西科元晟地科技有限公司 | Device and treatment method for treating and recycling car washing wastewater by using diatomite |
| CN109231642A (en) * | 2018-09-25 | 2019-01-18 | 安顺优品洗涤有限公司 | A kind of purification method of wash water |
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Application publication date: 20081105 |