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deep well drilling waste water emission treatment technology systems

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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deep well drilling waste water emission treatment technology systems
Sulphide precipitation – Mine Closure
Sulphide precipitation – Mine Closure

There are a number of laboratory and pilot scale studies done on ,mine, waters related to the production of biogenic sulphide and its utilization in metal precipitation ,process,. The biogenic sulphate reduction ,process, might be limited by the toxicity of metals and high acidity on bacterial activity.

Zinc Precipitation and Recovery From Viscose Rayon Waste Water
Zinc Precipitation and Recovery From Viscose Rayon Waste Water

When lime is used for neutralization, the value of the recovered zinc easily pays for the operating costs. Depending mainly on the zinc recovery capacity of the plant, the acid to zinc ratio in the feed, and the price of lime, the value of the recovered zinc may also pay part or all of the capital investment costs.

Advances in microbial remediation for heavy metal ...
Advances in microbial remediation for heavy metal ...

Mining ,wastewater, is a kind of ,mine, impacted water composed of ,mine, drainage, open cast mining and waste rock yard drainage, most of which contains high concentrations of sulfate and heavy metals. ,Mine, impacted waters can be acidic (,acid mine, drainage, AMD), or with pH values ranging from 6 to 9 defined as neutral ,mine, drainage (NMD) [ 31 ].

Enhanced biotreatment of acid mine drainage in the ...
Enhanced biotreatment of acid mine drainage in the ...

The physical processes have disadvantages such as high infrastructure costs and high operating costs. Therefore, biological processes have been employed as an alternative to treat sulfate-containing wastewater (Singh et al. 2011; Rodriguez et al. 2016).

Physical and chemical methods
Physical and chemical methods

lime neutralization, effectiveness in removing 10 trace elements from ,acid mine, drainage. ,Lime neutralization, was the best ,process, on an economic basis. Bishop 1X examined the pretreatment of tannery waste by screening, equalization, ,neutralization,, coagulation, floc-culation, and clarification prior to discharge to a municipal treatment plant. Total chro-

Advanced Environmental Engineering: April 2017
Advanced Environmental Engineering: April 2017

Process wastewater, with high pH and suspended solids may be generated in some operations. ... ,Neutralization, 5. Chemical coagulation and 6. ... Dilute sulphuric ,acid, and boiler flue gas which is rich in carbondioxide is commonly used for neutralisation of alkaline effluents from ,neutralization,.

Recent Developments for Remediating Acidic Mine Waters ...
Recent Developments for Remediating Acidic Mine Waters ...

Sulfate and Fe reduction, ,acid neutralization,: High capital cost, potential for armoring and plugging with hydroxides: Sulfate reducing bioreactor (SRB) Small flows or to situations, very acidic and metal rich water: Organic substrate such as hay, alfalfa, sawdust, paper, woodchips, crushed limestone and compost or manure: Microbial sulfate reduction

Enhanced biotreatment of acid mine drainage in the ...
Enhanced biotreatment of acid mine drainage in the ...

The physical processes have disadvantages such as high infrastructure costs and high operating costs. Therefore, biological processes have been employed as an alternative to treat sulfate-containing wastewater (Singh et al. 2011; Rodriguez et al. 2016).

Advances in microbial remediation for heavy metal ...
Advances in microbial remediation for heavy metal ...

Mining ,wastewater, is a kind of ,mine, impacted water composed of ,mine, drainage, open cast mining and waste rock yard drainage, most of which contains high concentrations of sulfate and heavy metals. ,Mine, impacted waters can be acidic (,acid mine, drainage, AMD), or with pH values ranging from 6 to 9 defined as neutral ,mine, drainage (NMD) [ 31 ].

Sulphide precipitation – Mine Closure
Sulphide precipitation – Mine Closure

There are a number of laboratory and pilot scale studies done on ,mine, waters related to the production of biogenic sulphide and its utilization in metal precipitation ,process,. The biogenic sulphate reduction ,process, might be limited by the toxicity …

Determination of Trace Metals in Waste Water and Their ...
Determination of Trace Metals in Waste Water and Their ...

9/3/2012, · The process requires addition of other chemicals, which finally leads to the generation of a high water content sludge, the disposal of which is cost intensive. Precipitation with lime, bisulphide or ion exchange lacks the specificity and is ineffective in …

Active treatment technologies – Mine Closure
Active treatment technologies – Mine Closure

Elina Merta, VTT Technical Research Centre of Finland Ltd, P.O. Box 1000, FI-02044 VTT, Finland, elina.merta(at)vtt.fi Treatment technologies for mining influenced water have traditionally been divided into active and passive treatment technologies, both of which can comprise physical, biological and chemical mechanisms. Combinations of several technologies are often needed to …

Chapter 7 - GARDGuide
Chapter 7 - GARDGuide

9/6/2012, · The specific ,process, arrangement for metals removal is the same as for ,neutralization, – and is often in a ,lime,/HDS configuration with additional chemical feed and control systems. The primary differences are the potential pre-treatment requirements, operation at an elevated pH, and the possible need to reduce the treated effluent pH with ,acid, or carbon dioxide to meet effluent discharge pH …

(PDF) Removal of heavy metal ions from wastewaters: A ...
(PDF) Removal of heavy metal ions from wastewaters: A ...

Charerntanyarak (1999) using SRB for the treatment of an ,acid mine, drainage was also employed chemical coagulation and precipitation by ,lime, to treat studied (Alvarez et al., 2007). synthetic ,wastewater, consisting of Zn, Cd, Mn and Mg at the However, there are potential dangers in the use of sulfide concentration of 450, 150, 1085 and 3154 mg/L, respectively.

Handbook of water and wastewater treatment technology ...
Handbook of water and wastewater treatment technology ...

Handbook of Water and ,Wastewater, Treatment Technology Paul N.Cheremisinoff N ew Jersey Institute o f Technology N ewark, N ew Jersey Taylor &. Francis Taylor & Francis Group Boca Raton London New York A CRC title, part of the Taylor & Francis imprint, a m em ber of the Taylor & Francis Group, the academic division of T&F Informa pic.

Physical and chemical methods
Physical and chemical methods

lime neutralization, effectiveness in removing 10 trace elements from ,acid mine, drainage. ,Lime neutralization, was the best ,process, on an economic basis. Bishop 1X examined the pretreatment of tannery waste by screening, equalization, ,neutralization,, coagulation, floc-culation, and clarification prior to discharge to a municipal treatment plant. Total chro-

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