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How to treat acidic wastewater with high COD

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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How to treat acidic wastewater with high COD
Chemosphere | Vol 117 Pages 1-830 (December 2014 ...
Chemosphere | Vol 117 Pages 1-830 (December 2014 ...

Acid mine, drainage treatment using by-products from quicklime manufacturing as neutralization chemicals

ALGAE-BASED HEAVY METAL REMEDIATION IN ACID MINE …
ALGAE-BASED HEAVY METAL REMEDIATION IN ACID MINE …

In the coal-mining region of Santa Catarina state, Brazil, the water streams affected by ,acid mine, drainage are inhabited by a few algae groups, including the genera Microspora, Eunotia, Euglena ...

Wastewater Treatment during PCB Fabrication Process | PSPCB
Wastewater Treatment during PCB Fabrication Process | PSPCB

And carry out countercurrent ,washing,. This process produces ,acidic, copper-containing waste liquid, copper-containing ,wastewater,, and ammonia. (6) Fading: Dissolve the hardened dry film on the copper line with an aqueous solution containing sodium hydroxide or an organic solvent to expose the copper line and wash it with water.

TREATMENT OF WASTEWATER RESULTING FROM THE METALLIC ...
TREATMENT OF WASTEWATER RESULTING FROM THE METALLIC ...

values, respectively: acid solutions (with ,alkaline, solution HCl): pH 2.64, 3.57, 4.30 and ,alkaline, solutions (with NaOH) pH: 11.14; 12.27; 13.44. 2.1. Treating ,acidic, waters To treat ,acidic, waters resulting from the ,washing, process after pickling, the literature [8-10] indicates the use of …

Environmental Pollution | Vol 266 Part 2 November 2020 ...
Environmental Pollution | Vol 266 Part 2 November 2020 ...

Surface treated ,acid,-activated carbon for adsorption of anionic azo dyes from single and binary adsorptive systems: A detail insight

(PDF) Cheese whey wastewater: characterization and ...
(PDF) Cheese whey wastewater: characterization and ...

These wastewaters are mainly composed by different dilutions of milk (or transformed products), and ,washing, water containing ,alkaline, and ,acidic, chemicals after the cleaning of bottles, tanks, process equipment (tools, pumps).From an environmental point of view, among the dairy effluent key parameters, a considerable high organic load should be highlighted.Dairy effluents, other than cheese ...

Microbial community and metabolic pathway succession ...
Microbial community and metabolic pathway succession ...

According to the official statistics from the state administration of work safety in 2012, approximately 12,273 ,mine, tailings have generated eight billion tons of ,mine, waste in China 1.

Template Polymerization of a Novel Cationic Polyacrylamide ...
Template Polymerization of a Novel Cationic Polyacrylamide ...

In the optimal conditions of a TPDA dose of 9.0 mg·L –1 and a ,wastewater, pH of 5.0–7.0, the residual concentration of suspended solids in a supernatant of coal ,mine wastewater, reached the lowest value of approximately 20.04 mg·L –1. The TPDA flocs were large, compact, rapid …

Adsorption Characteristics of Mineral Absorbent for ...
Adsorption Characteristics of Mineral Absorbent for ...

The adsorption capacity of a natural mineral absorbent has been investigated for sulfate reduction in ,acid mine, drainage. The results show that the performance of absorbent high and mainly influenced by the retention time in water. The efficiency of the sulfate removal in …

2012 International Conference on Environmental Pollution ...
2012 International Conference on Environmental Pollution ...

Scientific Research Publishing is an academic publisher with more than 200 open access journal in the areas of science, technology and medicine. It also publishes …

Proceedings of the 2016 4th International Conference on ...
Proceedings of the 2016 4th International Conference on ...

The ,acid waste water, produced in the process of ,mine, exploitation has greatly increased the migration and transformation of heavy metals, through the ,waste water, and rainwater flow to the soil, did great harm to the use of the soil. Farmland soil around the ,mine, area was studied in this paper, by using...

Acidic Washing and Cleaning Agent
Acidic Washing and Cleaning Agent

Depending on the pH of the basic solution (LIPOWASH) used for ,washing, and the area’s water hardness, add 0.5-1 liters of PROTOWASH to 100 liters of water. Instruction to Use: Upon ,washing, with the basic agent and rinsing, refill the tank with clean water. Add the duly diluted PROTOWASH solution. Circulate for 10 minutes at room temperature.

Treatment of acid mine drainage by sulfate reducing ...
Treatment of acid mine drainage by sulfate reducing ...

Acid mine, drainage (AMD) is considered to be one of the major environmental problems faced by the mining industries due to its toxic and lethal impact on the ecosystem.

WO1997036829A1 - Method for treating acidic waste water ...
WO1997036829A1 - Method for treating acidic waste water ...

A method of treatment of ,acid, waste waters or ,acid, drainage waters containing metals comprising ferrous and ferric ions, the method comprising increasing the pH of the ,acid, waste to at least 7.5 by addition of an alkaline reagent under conditions such that ferrous ions are stable with respect to oxidation to ferric ions, to form a precipitate and collecting the precipitate.

Acidic Water Signs and Solutions | Solution Center ...
Acidic Water Signs and Solutions | Solution Center ...

In fact, ,alkaline, water can contribute to scale buildup in your household plumbing and bitter tasting coffee.The idea that consuming ,alkaline, water will help turn your body less ,acidic, is wrong. This kind of water has been marketed to consumers for years, but the evidence that any consumption of this type of water is beneficial from a health standpoint is a pseudoscience.

Beginners Guide to Wastewater Treatment for Paper Industry
Beginners Guide to Wastewater Treatment for Paper Industry

Washing, the pulp with high amount of water; ,Washing, with low amount of water with additions like sodium silicates, sodium carbonate, fatty acids or non-ion detergents; The ,wastewater, of this industry also contains particles like plastics, metal parts (paper clips, etc.) and other wastes that have to …

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