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Treatment of acid wastewater by adding clarified lime water

Established in 2001, Puyang Zhong Yuan Restar Petroleum Equipment Co.,Ltd, “RSD” for short, is Henan’s high-tech enterprise with intellectual property advantages and independent legal person qualification. With registered capital of RMB 50 million, the Company has two subsidiaries-Henan Restar Separation Equipment Technology Co., Ltd We are mainly specialized in R&D, production and service of various intelligent separation and control systems in oil&gas drilling,engineering environmental protection and mining industries.We always take the lead in Chinese market shares of drilling fluid shale shaker for many years. Our products have been exported more than 20 countries and always extensively praised by customers. We are Class I network supplier of Sinopec,CNPC and CNOOC and registered supplier of ONGC, OIL India,KOC. High quality and international standard products make us gain many Large-scale drilling fluids recycling systems for Saudi Aramco and Gazprom projects.

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Treatment of acid wastewater by adding clarified lime water
The Korean Journal of Chemical Engineering
The Korean Journal of Chemical Engineering

January, 2011 ~ January 2013 Volume 27, Number 1 ~ Volume 30, Number 1: Print ISSN 0256-1115 Online ISSN 1975-7220

An Assessment of Technology for Possible Utilization of ...
An Assessment of Technology for Possible Utilization of ...

Included in the study is a review of the published litera- ture (1940-1975) on bauxite ,processing, technology, waste mud dewatering, and the ,utilization, of Bayer ,process, muds. This report will be of interest to alumina producers and to those in- dividuals involved in dewatering studies of slimes and tailings produced in the minerals ,processing, industry.

Proposal for resources utilization and processes of red ...
Proposal for resources utilization and processes of red ...

30/1/2013, · In the United States of America red and brown muds are precipitated from a caustic suspension of sodium aluminate in slurry and routed to large on-site surface impoundments known as red and brown mud lakes. In these lakes, the red and brown muds settle to the bottom. The water is then removed, treated and either ,discharged, or reused.

Dissolution of mechanically activated Panzhihua ilmenites ...
Dissolution of mechanically activated Panzhihua ilmenites ...

Moreover, the results demonstrated the technical feasibility of upgrading Panzhihua ,ilmenite, in 40 wt. % sulfuric acid obtained by concentrating the diluted acid waste ,discharged, from the sulfate ...

TITLE 35: ENVIRONMENTAL PROTECTION
TITLE 35: ENVIRONMENTAL PROTECTION

1)This Subpart O applies to ,process wastewater, discharges from all establishments or portions of establishments that manufacture the organic chemicals, plastics, and synthetic fibers (OCPSF) products or product groups that are covered by Sections 307.2402 through 307.2408 and which are included in the following SIC major groups, as defined in the Standard Industrial Classification Manual ...

The KNeW process: a profitable way of recovering salinated ...
The KNeW process: a profitable way of recovering salinated ...

The residual ,liquor, is cooled to produce a pure crystalline potassium nitrate, which is separated and dried for use in horticulture as a primary fertilizer. Another option is to use vegetable ash, which has a very high potassium carbonate content as a raw material to precipitate out the multicharged elements giving an even more economic route to the formation of potassium nitrate.

Recent advances based on the synergetic effect of ...
Recent advances based on the synergetic effect of ...

1/3/2018, · During the dyeing ,process,, approximately 15% of these non-biodegradable textile dyes are ,discharged, into natural stream and water bodies in the form of textile waste effluent. As per estimation made by World Bank, nearly 17%–20% water pollution has the major contributors related to textile finishing and dyeing industries.

CN104016415B - By the comprehensive utilization production ...
CN104016415B - By the comprehensive utilization production ...

The invention discloses a kind of comprehensive ,utilization, production method ,of, hydrochloric acid method Production of Artificial Rutile waste liquid, comprise the following steps: leaching waste liquid sends into ammoniation reactor and ammonia carries out neutralization reaction; Feed liquid after neutralization is made a gift to someone after ageing tank ageing; Slip after ageing is sent into …

Environmental Performance of Iron and Steel Plant – IspatGuru
Environmental Performance of Iron and Steel Plant – IspatGuru

Coke ,making,. Coke ,making, ... ,wastewater, sump, and naphthalene collection and recovery falls into hazardous category. Various regulatory authorities have either revised or in the process of revising coke oven plant air ... Spent pickle ,liquor, is a hazardous waste because it contains considerable residual ,acidity, and high concentrations of ...

US5298169A - Treatment of waste sulfuric acid by gypsum ...
US5298169A - Treatment of waste sulfuric acid by gypsum ...

Disclosed is a ,process, for treating waste sulfuric acid generated from a ,process, for producing titanium dioxide pigment by treating titanium slag with sulfuric acid. The waste acid is treated in a first step with a calcium-containing material to produce a gypsum suspension which is filtered and from which a …

Process Design Manual for Suspended Solids Removal
Process Design Manual for Suspended Solids Removal

The liquor weighs between 9.9 and 10.4 Ib/gal and contains 20 to 25 percent FeCb or about 10 percent available Fe2+. A 22 percent solution of FeCb will crystallize at a temperature of-4 °F. The molecular weight of FeCb is 126.76. Free acid in waste pickle liquor can vary from 1 to 10 percent and usually averages about 1.5 to 2.0 percent.

An Assessment of Technology for Possible Utilization of ...
An Assessment of Technology for Possible Utilization of ...

Included in the study is a review of the published litera- ture (1940-1975) on bauxite ,processing, technology, waste mud dewatering, and the ,utilization, of Bayer ,process, muds. This report will be of interest to alumina producers and to those in- dividuals involved in dewatering studies of slimes and tailings produced in the minerals ,processing, industry.

PROCESSES FOR THE RECOVERY OF FLUORIDE AND SILICA …
PROCESSES FOR THE RECOVERY OF FLUORIDE AND SILICA …

The invention provides industrial processes for the recovery of a fluoride, a phosphoric acid (P 2 O 5), or a silicofluoride from a phosphoric acid-generating plant facility or a contaminated ,wastewater, system associated with a phosphoric acid-generating facility, or a gypsum or a cooling pond, comprising an industrial ,process, as set forth in FIG. 1, or any portion or sub-,process, thereof.

(PDF) Water and Wastewater Calculations Manual 2nd Ed Shun ...
(PDF) Water and Wastewater Calculations Manual 2nd Ed Shun ...

Water ,and Wastewater, Calculations Manual 2nd Ed Shun Dar Lin. Hardi Suhardian. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 25 Full PDFs related to this paper. READ PAPER. Water ,and Wastewater, Calculations Manual 2nd Ed Shun Dar Lin. Download.

Process Design Manual for Suspended Solids Removal
Process Design Manual for Suspended Solids Removal

The liquor weighs between 9.9 and 10.4 Ib/gal and contains 20 to 25 percent FeCb or about 10 percent available Fe2+. A 22 percent solution of FeCb will crystallize at a temperature of-4 °F. The molecular weight of FeCb is 126.76. Free ,acid, in waste pickle liquor can vary from 1 to 10 percent and usually averages about 1.5 to 2.0 percent.

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