CN103523953A - Stone processing wastewater treatment method - Google Patents
Stone processing wastewater treatment method Download PDFInfo
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- CN103523953A CN103523953A CN201310475214.XA CN201310475214A CN103523953A CN 103523953 A CN103523953 A CN 103523953A CN 201310475214 A CN201310475214 A CN 201310475214A CN 103523953 A CN103523953 A CN 103523953A
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Abstract
The invention relates to a wastewater treatment method, and discloses a stone processing wastewater treatment method. The stone processing wastewater treatment method comprises the following steps: adding lime powder to wastewater for adjusting pH to 10-11, fully stirring for 1 minute, then adding brine and polyacrylamide (PAM), continuing to stirring and then taking a supernatant. The stone processing wastewater treatment method adopts a brine/lime system and organic polymer flocculant PAM for combination treatment of the stone wastewater, and compared with a traditional method directly adopting a flocculant for flocculation sedimentation of sludge, the stone processing wastewater treatment method can perform demulsification in advance. Because the stone processing wastewater treatment method can remove cooling oil simultaneously with the settlement of stone powder particles, the stone processing wastewater treatment method is more suitable for water collection treatment of the stone wastewater; and the process is theoretically suitable for treatment of metallic ore flotation waste water containing a large amount of emulsified oil, dispersants and xanthate. The lower waste slag is relatively soft, and easy to further treat, so that the stone powder waste slag hardening phenomenon in the terminal purification process in the prior art is solved.
Description
Technical field
The present invention relates to a kind for the treatment of process of waste water.
Background technology
Processing of stone is the Non-metallic Mineral Property of current output value maximum, and it produces stone material waste water.Be different from conventional breeze waste water, contain the inorganic salts additives such as stone flour, part petroleum hydrocarbon, exhibiting high surface dispersion agent and a small amount of ammonium chloride, Sodium Nitrite in stone material waste water, character is similar to floating beneficiation wastewater.Because this waste water COD content is higher, natural sedimentation product is very closely knit, and directly discharge often causes the problem that hydrobiont is dead, soil covering is hardened, and causes serious environmental disruption.According to relevant enterprise, reflect the problem that existing stone material contaminated wastewater need to solve: (1) low-cost precipitation process; (2) degree of compactness is very high can only take for the stone flour precipitation that existing treatment technology produces, and must improve.Owing to containing exhibiting high surface dispersion agent and petroleum hydrocarbon in stone material waste water, cause stone flour particle surface with a large amount of negative charges.The charge neutrality technology sedimentation effect that tradition is processed for mining wastewater is poor.Process in the method for stone material waste water at present, substantially do not carry out conventional flocculence (ferrous sulfate/lime flocculation, the PAM flocculation) poor effect of charge neutrality; The shortcomings such as carry out the flocculence of light current neutralization because of flocculation agent consumption>=0.2%, settling velocity is general<0.5 cm/min, and water outlet is muddy, and treatment effect is bad, and be difficult for promoting; The flocculence (electric flocculence) that carries out forceful electric power neutralization it is reported that its effect is fine, and precipitation is also loose easily to be extracted, but facility investment expense is large.
Summary of the invention
The present invention aims to provide a kind of method of processing stone material industry processing waste water with low cost.
The method of processing stone material industry processing waste water of the present invention, comprising:
To adding in waste water lime powder to regulate pH, be 10-11, fully stir after 1 minute, then add bittern and PAM, continue to stir, then get supernatant.
Preferably, the consumption of bittern is 0.03%-0.15%.
Or preferably, the consumption of PAM is 10mg/L.
The present invention adopts bittern/lime system and organic polymer coargulator PAM combined treatment stone material waste water, directly adopts the method for flocculation agent flocculation sediment mud to compare with tradition, and method of the present invention is breakdown of emulsion in advance.Because method of the present invention has also been removed cooling oil in sedimentation stone flour particle. be therefore more suitable for the processing of catchmenting of stone material waste water; On this technology theory, be suitable for equally the processing containing the metallic ore flotation waste water of a large amount of oil in water emulsions, dispersion agent and xanthate.Lower floor's waste residue is softer, is easy to further processing, has solved the stone flour waste residue hardening phenomenon in current terminal purifying technique.
Embodiment
Embodiment mono-
Preparation simulation stone material industry processing waste water, COD is 78.2 mg/L, get 200mL, adding wherein lime powder is 10-11 by pH regulator, fully stirs after 1 minute, then adds 30mL bittern and 2 mg PAM, continue to stir, the settling velocity that records stone flour is 60cm/min, and then getting supernatant, to survey its absorbancy be that 0.02, COD is 9.3mg/L.Meet the requirement of integrated wastewater discharge standard (GB 8978-1996).
Claims (3)
1. process a method for stone material industry processing waste water, it is characterized in that comprising:
To adding in waste water lime powder to regulate pH, be 10-11, fully stir after 1 minute, then add bittern and PAM, continue to stir, then get supernatant.
2. the method for processing stone material industry processing waste water as claimed in claim 1, the consumption that it is characterized in that bittern is 0.03%-0.15%.
3. the method for processing stone material industry processing waste water as claimed in claim 1, the consumption that it is characterized in that PAM is 10mg/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310475214.XA CN103523953A (en) | 2013-10-13 | 2013-10-13 | Stone processing wastewater treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310475214.XA CN103523953A (en) | 2013-10-13 | 2013-10-13 | Stone processing wastewater treatment method |
Publications (1)
| Publication Number | Publication Date |
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| CN103523953A true CN103523953A (en) | 2014-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310475214.XA Pending CN103523953A (en) | 2013-10-13 | 2013-10-13 | Stone processing wastewater treatment method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104193117A (en) * | 2014-09-24 | 2014-12-10 | 厦门福润源环保科技有限公司 | Treatment device of processing wastewater of jade |
| CN105884074A (en) * | 2015-01-26 | 2016-08-24 | 中国石油天然气股份有限公司 | Pretreatment integrated device and method for removing dispersing agent in solution polymerized styrene butadiene rubber sewage |
| CN108083510A (en) * | 2018-01-04 | 2018-05-29 | 青岛碧蓝士环保科技有限公司 | A kind of processing method of processing of stone cutting wastewater |
| CN110204087A (en) * | 2016-02-18 | 2019-09-06 | 长江勘测规划设计研究有限责任公司 | The processing method of high concentration suspended matter waste water |
-
2013
- 2013-10-13 CN CN201310475214.XA patent/CN103523953A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104193117A (en) * | 2014-09-24 | 2014-12-10 | 厦门福润源环保科技有限公司 | Treatment device of processing wastewater of jade |
| CN104193117B (en) * | 2014-09-24 | 2017-04-26 | 厦门福润源环保科技有限公司 | Treatment device of processing wastewater of jade |
| CN105884074A (en) * | 2015-01-26 | 2016-08-24 | 中国石油天然气股份有限公司 | Pretreatment integrated device and method for removing dispersing agent in solution polymerized styrene butadiene rubber sewage |
| CN110204087A (en) * | 2016-02-18 | 2019-09-06 | 长江勘测规划设计研究有限责任公司 | The processing method of high concentration suspended matter waste water |
| CN110204087B (en) * | 2016-02-18 | 2022-10-28 | 长江勘测规划设计研究有限责任公司 | Method for treating high-concentration suspended matter wastewater |
| CN108083510A (en) * | 2018-01-04 | 2018-05-29 | 青岛碧蓝士环保科技有限公司 | A kind of processing method of processing of stone cutting wastewater |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140122 |