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Acidic wastewater is directly discharged into the sewer

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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Acidic wastewater is directly discharged into the sewer
14 Industrial Wastewater Treatment Principals and Ideas
14 Industrial Wastewater Treatment Principals and Ideas

The third type is classified according to the main components of the pollutants contained in the ,wastewater,, such as acidic ,wastewater,, alkaline ,wastewater,, cyanide-,containing wastewater,, ,chromium,-,containing wastewater,, cadmium-,containing wastewater,, mercury-,containing wastewater,, phenol-,containing wastewater,, aldehyde-,containing wastewater,, and oily ,wastewater,. , sulfur-,containing wastewater,, organic phosphorus ,wastewater, and radioactive ,wastewater,…

Biosorption Process for Treatment of Electroplating ...
Biosorption Process for Treatment of Electroplating ...

It is very toxic to both plants and animals because it can easily penetrate the cell wall and exert its noxious influence in the cell itself, being also a source of various cancer diseases ...

CN102586849B - Chromium plating production equipment ...
CN102586849B - Chromium plating production equipment ...

The invention discloses ,chromium, plating production equipment without discharge of ,electroplating, waste liquid, waste gas and waste residues (three wastes). The equipment is characterized by consisting of a ,chromium, plating production device without the discharge of ,electroplating, sewage, a device for recovering chromic ,acid, in ,chromium, fog and a ,chromium, plating solid waste treatment device.

Wastewater Neutralization Systems  High Performance Waste ...
Wastewater Neutralization Systems High Performance Waste ...

Popular Products of ,Wastewater Neutralization, Systems , High Performance Waste ,Neutralization, System by ,Acid, Waste ,Neutralization, System - Jiangsu …

Treatment Technology of Wastewater from Nictric Acid ...
Treatment Technology of Wastewater from Nictric Acid ...

Article Treatment Technology of ,Wastewater, from Nictric ,Acid, Production (Second). The nictric ,acid, is an organic ,acid,, which is mainly used in food industry, medicine, chemical industry and so on. Generally, starch is the main source of nictric ,acid,....

Chromium Speciation in Wastewater and Sewage by Solid ...
Chromium Speciation in Wastewater and Sewage by Solid ...

The wide use of chromium in steel and, electroplating industry,, leather tanning, production of alloys and pigments leads to the discharge of significant quantities of liquid or solid, wastes containing chromium, into the environment, which, pollutes, groundwater and surface water, soils and plants (Kotaś and Stasicka 2000; Metze et al. 2005; Hoet 2005) .

Effect of pH and Temperature on the Biosorption of Heavy ...
Effect of pH and Temperature on the Biosorption of Heavy ...

[3],[8],[9].Various industries like ,electroplating,, metal cleaning, metal processing, mining, coating, car and aeronautics produce ,waste, water ,containing, large quantity of Iron. The presence of Iron in water results in undesirable colour, odour and taste which makes water unfit for ,industry, …

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, could harm animal, and, human health.

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

13., Acid, and alkali, wastewater. Acid wastewater, mainly comes from steel, plants,, chemical, plants,, dye, plant,s,, electroplating plants, and mines, etc., which contains various harmful substances or heavy metal salts. The mass fractions of, acids, vary widely, ranging from less than 1% to as high as 10%.

r e m e d iat on ournal of Bhavani et al Bioremediat ...
r e m e d iat on ournal of Bhavani et al Bioremediat ...

and land are continuously being, polluted, over the period of the time., Effluent waste from Electroplating industries, considerably, pollutes the environment., It is of major concern as the discharged heavy, metals, such as Cr 6+, Zn 2+, Cu 2+, Pb2+, Cd2+ etc. are harmful to the ecosystem. Although various techniques are used for the removal of heavy metals.

pH Neutralization Chemicals Wastewater Treatment | Beckart
pH Neutralization Chemicals Wastewater Treatment | Beckart

Nearly every municipality requires pH ,neutralization, of industrial ,wastewater, before it’s discharged back into the environment or sewer system. However, attaining a neutral pH without interfering with other treatments can be a complicated process, requiring a wide variety of equipment and chemicals.

Hazardous process chemical and water ... - ScienceDirect
Hazardous process chemical and water ... - ScienceDirect

1/12/2013, · The use of, nitric acid and, trivalent, chromium, solution as cleaning agents in these stages results in production of highly acidic and heavy metal, containing wastewater., Each chemical bath is followed by an overflow rinsing bath in the zinc electroplating process.

Table 7392 Common Neutralization Reagents - Wastewater ...
Table 7392 Common Neutralization Reagents - Wastewater ...

Survival MD. General Home Preparedness for You and Your Family. Final Survival Plan

(PDF) Removal of Hexavalent Chromium from Contaminated ...
(PDF) Removal of Hexavalent Chromium from Contaminated ...

The two major ecosystem. Among the different heavy metals, hexavalent sources of contamination are tanneries (trivalent chromium), chromium is a common and very toxic pollutant introduced electroplating and metal finishing industries (hexavalent into natural waters from a …

Quantification of Chromium (III) and Chromium (VI) in the ...
Quantification of Chromium (III) and Chromium (VI) in the ...

PDF | ,Chromium, is widely used for plating of the surface of ferrous materials to protect from rust as well as increasing strength. The industrial... | Find, read and cite all the research you need ...

Efficient Liquid-Solids Separation Is Critical to ...
Efficient Liquid-Solids Separation Is Critical to ...

Wastewater, that is recovered from the gypsum stack contains environmentally-challenging contaminants including residual phosphoric ,acid,, hydrofluoric ,acid,, fluosilicic ,acid,, and heavy metals. WesTech’s two-stage ,neutralization, system removes these contaminants, yielding usable plant water including a small solids effluent that offers much easier and less expensive disposal.

COAGULATION-FLOCCULATION PROCESSES IN WATER/WASTEWATER …
COAGULATION-FLOCCULATION PROCESSES IN WATER/WASTEWATER …

reaction of bauxite ores with sulfuric ,acid,. Evaporation of water in the process results in a dry product, having the approximate formula Al2(SO4)3.14-18H2O, and with an Al content ranging from 7.4 to 9.5%. It is supplied as powder or in liquid form and its applications include water or ,wastewater, treatment.

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