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Fracturing flowback fluid in Shanxi Province

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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Fracturing flowback fluid in Shanxi Province
IOP Conference Series: Earth and Environmental Science ...
IOP Conference Series: Earth and Environmental Science ...

Leather tannery industry discharged ,wastewater containing chromium, to the nearby river. The presence of ,chromium, in excess of the limit pollutes the environment and …

Glossary of Water and Wastewater Terms | UWtech
Glossary of Water and Wastewater Terms | UWtech

A. Amino acids – Compounds, ,containing, within their structure at least one amino group (NHy) and one carboxylic group (-COOH)).Sub-units of amino acids make up proteins. Amplitude – The magnitude of the maximum displacement of an oscillating sound wave.. Anaerobic digestion – Digestion of organic matter by anaerobic microbial action, resulting in the ,production, of methane gas.

Dye Manufacturing - IFC
Dye Manufacturing - IFC

• Mordant or chrome dyes: metallic salt or ,lake, formed directly on the fiber by the use of alu-minum, ,chromium,, or iron salts that cause precipitation in situ • ,Lake, or pigment dyes: form insoluble compounds with aluminum, barium, or ,chromium, on mo-lybdenum salts; the precipitates are ground to form pigments used in paint and inks

Fertilizer - Wikipedia
Fertilizer - Wikipedia

Phosphate fertilizers are obtained by extraction from phosphate rock, which contains two principal phosphorus-,containing, minerals, fluorapatite Ca 5 (PO 4) 3 F (CFA) and hydroxyapatite Ca 5 (PO 4) 3 OH. These minerals are converted into water-soluble phosphate salts by treatment with sulfuric (H 2 SO 4) or phosphoric acids (H 3 PO 4).The large ,production, of sulfuric ,acid, is primarily motivated ...

Wastewater Analysis and Study of Soil Microorganisms of ...
Wastewater Analysis and Study of Soil Microorganisms of ...

Sources of industrial ,wastewater,:Iron and steel industry:The ,production, of iron from its ores involves powerful reduction reactions in blast furnaces.Contamination of waste streams includes gasification products suchas benzene, naphthalene, anthracene, cyanide, ammonia, phenols, cresols together with arange of more complex organic compounds known collectively as polycyclic aromatichydrocarbons ...

IJERPH | Free Full-Text | Chromium Monitoring in Water by ...
IJERPH | Free Full-Text | Chromium Monitoring in Water by ...

Chromium, contamination of drinking water has become a global problem due to its extensive use in industry. The most commonly used methods for ,chromium, detection in water are laboratory-based methods, such as atomic absorption spectroscopy and mass spectroscopy. Although these methods are highly selective and sensitive, they require expensive maintenance and highly trained staff.

MICRO- PLANT AND WASTEWATER TREATMENT: REVIEW OF PRACTICAL ...
MICRO- PLANT AND WASTEWATER TREATMENT: REVIEW OF PRACTICAL ...

Treatment of recalcitrant ,wastewater, from ethanol and citric ,acid production, using the microalga Chlorella vulgaris and the macrophyte Lemna minuscula. Water Res. 36, 4185–4192. Van Der Houwen, J.A.M., Valsami-Jones, E., 2001.

Highly selective and sensitive probes for the detection of ...
Highly selective and sensitive probes for the detection of ...

Due to its large-scale applications in metallurgy, chemical engineering, steel making and many other areas, ,chromium, is extensively discharged from the industries; this poses a severe threat to the environment and human health. 1–3 Compared with trivalent ,chromium,, which is an essential nutrient for humans, hexavalent ,chromium, is a lethal toxicant to human beings. 4–6 According to the ...

Impacts of aquaculture wastewater irrigation on soil ...
Impacts of aquaculture wastewater irrigation on soil ...

Bahmanyar, M. Cadmium, nickel, ,chromium,, and lead levels in soils and vegetables under long-term irrigation with industrial ,wastewater,. Commun. Soil Sci. Plant 39 , 2068–2079 (2008).

Recent advances in textile wastewater treatment using ...
Recent advances in textile wastewater treatment using ...

The textile wastewaters (TWWs) are one of the major sources of environmental pollution, due to the presence of various recalcitrant dyes. It is estimated that about 300,000 t of synthetic dyes are discharged in TWWs every year worldwide. Thus, untreated or incompletely treated TWWs cause harm to aquatic and terrestrial life. To avoid the negative impacts associated to the discharge of TWWs ...

Textile effluent treatment - SlideShare
Textile effluent treatment - SlideShare

Anthraquinone dyes of the solvent or disperse class ,containing, one or more primary amino- or methyl amino- groups tend to be mutagenic or carcinogenic. Cations bind to sulfhydryl (-SH) group (cysteine amino ,acid,) in enzymes disrupting the vital metabolic reaction catalyzed by the enzyme. The high alkalinity and traces of ,chromium, (employed in dyes) adversely affect the aquatic life. Imidazole ...

Chromium Speciation in Rainwater: Temporal Variability and ...
Chromium Speciation in Rainwater: Temporal Variability and ...

The concentrations of the various ,chromium, species were determined in 89 rainwater samples collected in Wilmington, NC, from October 1, 1999, to December 31, 2001. Volume-weighted annual average concentrations of Crtotal, particulate Cr, Cr(III)(aq), and Cr(VI)(aq) were 4.6, 2.2, 0.8, and 1.2 nM, respectively. There was distinct seasonal and diurnal variability in the concentrations of the ...

ICEPR 2011 Proceedings - List of Papers - Avestia
ICEPR 2011 Proceedings - List of Papers - Avestia

Wastewater, Management and Treatment. Treatment of ,Chromium, (VI) ,Containing, Aqueous Effluent of Tanneries and Electroplating Units by Membrane Process; Biological Treatment of Salinity ,Wastewater, by Aspergillus Flavus: Based on Biosorption Batch Process Operation

Removal of Microbeads from Wastewater Using ...
Removal of Microbeads from Wastewater Using ...

The need for better microplastic removal from ,wastewater, streams is clear, to prevent potential harm the microplastic may cause to the marine life. This paper aims to investigate the efficacy of ,electrocoagulation, (EC), a well-known and established process, in the unexplored context of microplastic removal from ,wastewater, streams. This premise was investigated using artificial ,wastewater, ...

Wastewater Analysis and Study of Soil Microorganisms of ...
Wastewater Analysis and Study of Soil Microorganisms of ...

Sources of industrial ,wastewater,:Iron and steel industry:The ,production, of iron from its ores involves powerful reduction reactions in blast furnaces.Contamination of waste streams includes gasification products suchas benzene, naphthalene, anthracene, cyanide, ammonia, phenols, cresols together with arange of more complex organic compounds known collectively as polycyclic aromatichydrocarbons ...

Textile effluent treatment - SlideShare
Textile effluent treatment - SlideShare

Anthraquinone dyes of the solvent or disperse class ,containing, one or more primary amino- or methyl amino- groups tend to be mutagenic or carcinogenic. Cations bind to sulfhydryl (-SH) group (cysteine amino ,acid,) in enzymes disrupting the vital metabolic reaction catalyzed by the enzyme. The high alkalinity and traces of ,chromium, (employed in dyes) adversely affect the aquatic life. Imidazole ...

Study on reuse of waste hydrochloric acid by electrolysis
Study on reuse of waste hydrochloric acid by electrolysis

Download Citation | Study on reuse of waste hydrochloric ,acid, by electrolysis | The reuse of waste hydrochloric ,acid, with low concentration by diaphragm electrolysis is studied.

ICEPR 2011 Proceedings - List of Papers - Avestia
ICEPR 2011 Proceedings - List of Papers - Avestia

Wastewater, Management and Treatment. Treatment of ,Chromium, (VI) ,Containing, Aqueous Effluent of Tanneries and Electroplating Units by Membrane Process; Biological Treatment of Salinity ,Wastewater, by Aspergillus Flavus: Based on Biosorption Batch Process Operation

What is Hypochlorous Acid (HOCl) aka Electrolyzed water ...
What is Hypochlorous Acid (HOCl) aka Electrolyzed water ...

12/5/2020, · Offshore carpet Cleaning and Janitorial Services systems are capable of generating neutral-to-acidic electrolyzed water (anolyte) for cleaning & sanitation and for water disinfection. The anolyte is composed primarily of the free chlorine molecule hypochlorous ,acid, ( HOCl ), a powerful oxidant. Electrolysis is a well-known technology but the ...

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