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Treatment of acid ions in wastewater by electrolysis

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 ions in wastewater by electrolysis
The Treatment of High Concentration Dyeing Wastewater with ...
The Treatment of High Concentration Dyeing Wastewater with ...

produces nearly 700,000 tons of ,dyeing wastewater,. As a result, the ,wastewater, emissions, and the total amounts of pollutants of the ,dyeing, industry, rank second and fourth among the industrial departments nationwide, and the ,dyeing, industry has become one of the major water pollution industries in China.

TECHNOLOGY FACT SHEETS FOR EFFLUENT TREATMENT PLANTS …
TECHNOLOGY FACT SHEETS FOR EFFLUENT TREATMENT PLANTS …

Generally, in the ,dyeing, industry, effluents are highly ,alkaline, and require the addition of acid. However, provision should be made to be able to add both acid and alkali, as some ,dyeing, processes may give acid effluents and addition of alkali may be needed (Khan, 2006).

Chemical and microbial properties in contaminated soils ...
Chemical and microbial properties in contaminated soils ...

We measured soil chemical and microbial properties at a depth of 0–20 cm among ,mine, tailings, abandoned mined land, contaminated cropland, and uncontaminated cropland around a magnesite ,mine, …

Textile Dyeing Wastewater Dyeing Wastewater Treatment 93 1 ...
Textile Dyeing Wastewater Dyeing Wastewater Treatment 93 1 ...

The textile ,dyeing, industry consumes large quantities of water and produces large volumes of ,wastewater, from different steps in the ,dyeing, and finishing processes. ,Wastewater, from printing and ,dyeing, units is often rich in color, containing residues of reactive dyes and chemicals, such as complex components,many aerosols,high chroma,high COD and BOD concentration as well as much more hard ...

Treatment of Arsenic Heavy Metals and Acidity Using a ...
Treatment of Arsenic Heavy Metals and Acidity Using a ...

Jing Liu, Hongfei Cheng, ,Fenghua Zhao,, Faqing Dong, Ray L. Frost. Effect of reactive bed mineralogy on arsenic retention and permeability of synthetic arsenic-containing ,acid mine, drainage. Journal of Colloid and Interface Science 2013, 394 , 530-538.

Development of the Acidic Mining Wastewater Treatment ...
Development of the Acidic Mining Wastewater Treatment ...

The treatment technology of the ,acid mine, drainage's was briefly introduced. The research development of ,acid mine, drainage was summarized in recent years. It was the fact that developing the efficient, cheap, safe and easy treatment technology of ,acid mine, should be necessary and inevitably and some success management experiences of acidic ,waste water, were applied in acidic mining ,wastewater,.

Effect of reactive bed mineralogy on arsenic retention and ...
Effect of reactive bed mineralogy on arsenic retention and ...

Geochemical processes controlling fate and transport of arsenic in ,acid mine, drainage (AMD) and natural systems. Cheng H, Hu Y, Luo J, Xu B, ,Zhao, J. J Hazard Mater, 165(1-3):13-26, 25 Oct 2008 Cited by: 50 articles | PMID: 19070955. Review

Degradation of dyeing wastewater by gas-liquid gliding arc ...
Degradation of dyeing wastewater by gas-liquid gliding arc ...

see more details of ,dyeing wastewater, was ,alkaline, and subalkalic, HCO 3-and CO 3 2-formed in solution mainly, resulting in decreasing COD removal rate. When pH was strong ,acidic,, H 2 CO 3 and CO 2 existed in the solution, and the removal rate of COD did not have an impact.

Treatment of Arsenic Heavy Metals and Acidity Using a ...
Treatment of Arsenic Heavy Metals and Acidity Using a ...

10/2/2009, · Jing Liu, Hongfei Cheng, ,Fenghua Zhao,, Faqing Dong, Ray L. Frost. Effect of reactive bed mineralogy on arsenic retention and permeability of synthetic arsenic-containing ,acid mine, drainage. Journal of Colloid and Interface Science 2013, 394, 530-538. DOI: 10.1016/j.jcis.2012.12.014.

Dyeing of Polyester with 4-Fluorosulfonylphenylazo-5 ...
Dyeing of Polyester with 4-Fluorosulfonylphenylazo-5 ...

expense because of the highly ,alkaline, conditions, discharge of high levels of sulfur with the ,wastewater,, and substantial amounts of water used. There is also concern that ,wastewater, from reduction clearing contains carcinogenic or mutagenic aromatic amines from the reduction of azo dyes (Scheme1) [3–6].

Journal of Water Sustainability Volume 1 Issue 3 ...
Journal of Water Sustainability Volume 1 Issue 3 ...

biotreated ,dyeing, and textile ,wastewater, depended on initial COD of the ,wastewater,. In addition, colour removal efficiency in-creased with increasing the temperature from 25. o. C to 50. o. C. ,Alkaline, pH was also found as favorable condition for high removal of colour and COD. Ozone is …

Effect of pH on Natural Pigment Betacyanin Extraction From ...
Effect of pH on Natural Pigment Betacyanin Extraction From ...

wastewater, of textile ,dyeing, and finishing factories because of their loss in the ,dyeing, process since the fixation ... However, in this study the dye display pink colour at ,alkaline, medium although it should ... However, in order to have the red colour of dye, extraction at ,acidic, solution are more encouragable because the dye shows red in ...

Polyacrylamide for chemical fiber
Polyacrylamide for chemical fiber

Generally, ,acidic wastewater, is neutralized by adding alkali, and ,alkaline wastewater, is neutralized by adding acid. Where conditions permit, acid-base ,wastewater, can also be used for neutralization. After pH adjustment, the ,wastewater, needs to be pretreated to remove SS and oily substances, such as using air flotation to remove oil, coagulation and sedimentation to remove suspended solids and ...

Neutralizing-sedimentation with flocculation process for ...
Neutralizing-sedimentation with flocculation process for ...

Zhiyuan Cong, ,Fenghua Zhao,, Current situation and prospect of the research on ,acid mine, draniage. China Mining Magazine, Vol.12, pp.15-18, March 2003 (in chinese) Two stage neutralization of ...

Treatment of Industrial Effluents - Environmental Pollution
Treatment of Industrial Effluents - Environmental Pollution

(1) Highly ,acidic,; (2) ,Alkaline,; and (3) Condensate wastewaters, as already described in Part I- ,Wastewater, Characteristics. It is pertinent to mention that ,wastewater, from the manufacture of intermediates contains mainly mineral acids and inorganic salts with sulphanilic acid as the only predominant organic constituent.

15 types of industrial wastewater treatment processes ...
15 types of industrial wastewater treatment processes ...

For neutralization treatment, the principle of treating waste with waste should be considered first. Such as acid and ,alkaline wastewater, neutralize each other or use waste alkali (slag) to neutralize ,acidic wastewater,, use waste acid to neutralize ,alkaline wastewater,. In the absence of these conditions, a neutralizing agent can be used.

Textile dye wastewater characteristics and constituents of ...
Textile dye wastewater characteristics and constituents of ...

Textile dye wastewater characteristics, and˜constituents of˜synthetic e˚uen:al review ... ,alkaline,/,acidic, conditions Sizing De-sizing Scouring Mercerising ,Dyeing, Colour, metals, urea, formaldehyde ... ,Dyeing, 5–10 1450–4750 500–14,100 50 1100–4600 10–1800

Materials for the photoluminescent sensing of rare earth ...
Materials for the photoluminescent sensing of rare earth ...

The geochemistry of rare earth elements (REE) in ,acid mine, drainage from the Sitai coal ,mine,, Shanxi Province, North China journal, April 2007 ,Zhao,, ,Fenghua,; Cong, Zhiyuan; Sun, Hongfu International Journal of Coal Geology, Vol. 70, Issue 1-3

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