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low permeability oilfield oil producing wastewater reinjection water quality stabilizing technology

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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low permeability oilfield oil producing wastewater reinjection water quality stabilizing technology
Surface Modification of Cured Inorganic Foams with ...
Surface Modification of Cured Inorganic Foams with ...

The ,raw material, selected for the geopolymer foam production was metakaolin because of its purity and consistent chemical composition compared with industrial byproducts (e.g., fly ash). 53 CTAB was used as a surfactant because, based on the preliminary tests, it was found to produce a highly porous and water permeable structure with homogeneous pore-size distribution when combined with H 2 O 2.

Interest in Raw Material for Adhesive Industries - Enquiry ...
Interest in Raw Material for Adhesive Industries - Enquiry ...

Interest in ,Raw Material, for Adhesive Industries – Enquiry From São Roque, Brazil. Requirement : We are a Brazilian Chemical Company that is involved on adhesive market. We are interested in ,raw material, such as epoxy resin, polyamide resin etc.

Wetland Use in Acid Mine Drainage Remediation
Wetland Use in Acid Mine Drainage Remediation

20/11/2005, · Hallberg 2005a). ,Equation, 1 shows a condensed formula for the reaction that occurs, which actually takes place over 4 steps. 4 FeS2 + 15 O2 + 14 H20 Æ 4 Fe(OH)3 + 8 SO4 2- + 16 H+ (1) Acidity Acidic mine waters are typically caused by the oxidative dissolution of ,sulfide, minerals, such as pyrite.

ICWES15 -Comparative Absorption of Copper from Synthetic ...
ICWES15 -Comparative Absorption of Copper from Synthetic ...

ICWES15 -Comparative Absorption of ,Copper, from Synthetic and Real ,Wastewater, by Uncalcined Sodium Exchanged and ,Acid, Modified Montmorillonite. Presented by Dr christianah Olakitan Ijagbemi, Akure, Nigeria 1. Christy Ijagbemi Ph.

Heavy metal precipitation from sulfide produced from ...
Heavy metal precipitation from sulfide produced from ...

1/1/2020, · ,Sulfide, precipitation of ,copper, was achieved by adding Na 2 S as a ,sulfide, source as well as through biological precipitation using ,sulfide, rich effluent from sulfidogenic reactor. ,Copper, removal efficiency of about 90% was achieved through chemical ,sulfide, precipitation and 60% by biogenic ,sulfide, precipitation process.

Heavy metal precipitation from sulfide produced from ...
Heavy metal precipitation from sulfide produced from ...

1/1/2020, · ,Sulfide, precipitation of ,copper, was achieved by adding Na 2 S as a ,sulfide, source as well as through biological precipitation using ,sulfide, rich effluent from sulfidogenic reactor. ,Copper, removal efficiency of about 90% was achieved through chemical ,sulfide, precipitation and 60% by biogenic ,sulfide, precipitation process.

Clean & Moisture - ORALPEACE
Clean & Moisture - ORALPEACE

The lactic ,acid, bacterium "Lactococcus lactis" contained in ORALPEACE is a lactic ,acid, bacterium discovered in "Tofu", a clean and safe food produced in Japan. And for decades, a lactic ,acid, bacterium that lives in plant-derived foods that mass-produces lactobacillus antibacterial peptide "Nisin A", which has been licensed all over the world.

Acid mine drainage - Wikipedia
Acid mine drainage - Wikipedia

14/6/2004, · ,Acid, mine drainage, ,acid, and metalliferous drainage, or ,acid, rock drainage is the outflow of acidic water from metal mines or coal mines. ,Acid, rock drainage occurs naturally within some environments as part of the rock weathering process but is exacerbated by large-scale earth disturbances characteristic of mining and other large construction activities, usually within rocks containing an abundance of ,sulfide, minerals. Areas where the earth has been disturbed may create ,acid, …

REMOVAL OF COPPER ZINC AND NICKL FROM ACID MINE …
REMOVAL OF COPPER ZINC AND NICKL FROM ACID MINE …

The percent of metal ions removal by adsorbents was calculated by the following ,equation,: %MS=CO-Ce CO *100 Mass balance ,equation, used to calculate the capacity of the adsorbents: qe= CO-Ce m *V Where, q e is amount of metal ions absorbed on adsorbents (mg/g); C 0 and C e are the initial and

Natural Resources Class 9 Extra Questions and Answers ...
Natural Resources Class 9 Extra Questions and Answers ...

The domestic ,wastewater, contains detergents and nutrients which increase the growth of aquatic plants, algae, ... It acts as a ,raw material, for photosynthesis and helps in maintaining the temperature on the Earth. ... When this ,acid, rain falls on marble it causes ,yellowing, of the marble.

Wetland Use in Acid Mine Drainage Remediation
Wetland Use in Acid Mine Drainage Remediation

20/11/2005, · Hallberg 2005a). ,Equation, 1 shows a condensed formula for the reaction that occurs, which actually takes place over 4 steps. 4 FeS2 + 15 O2 + 14 H20 Æ 4 Fe(OH)3 + 8 SO4 2- + 16 H+ (1) Acidity Acidic mine waters are typically caused by the oxidative dissolution of ,sulfide, minerals, such as pyrite.

FRP (Glass Fiber Reinforced Plastics) Anti-corrosion ...
FRP (Glass Fiber Reinforced Plastics) Anti-corrosion ...

FRP (Glass Fiber Reinforced Plastics) Anti-corrosion Engineering. RP anti-corrosion is also called “epoxy resin FRP lining anti-corrosion”. That is to say, FRP anti-corrosion is realized in this way: Use epoxy resin glue to continuously stick glass fiber cloth of different thickness and short cut felt to the thickness required by design; at last, stick a layer of glass fiber surface felt ...

CN1343623A - Wet process for treating copper or arsenic ...
CN1343623A - Wet process for treating copper or arsenic ...

A process for preparing ,copper, sulfate from the ,sulfide, containing ,copper, and arsenic includes mixing the said ,sulfide, with 2-valence iron ions and compressed air or oxygen, stirring at 60-95 deg.C, and extracting reaction in sulfuric ,acid, solution to obtain ,copper, sulfate. Its advantages include simple apparatus no exhaustion of waste liquid and gas, and high output rate and quality of product.

Hydrothermal Treatment of Arsenic Sulfide Residues from ...
Hydrothermal Treatment of Arsenic Sulfide Residues from ...

In the smelting of ,copper, or lead-zinc ore, larger amounts of acidic ,wastewater, are discharged when gaseous emission containing SO 2, As, Cu, Pb, Zn and other impurities are washed with diluted ,acid, . Moreover, wasted electrolyte with a high concentration of arsenic is produced abundantly in ,copper, and lead-zinc electrolyte processes [8,9].

(PDF) RAW MATERIALS RESEARCH AND DEVELOPMENT …
(PDF) RAW MATERIALS RESEARCH AND DEVELOPMENT …

RAW, MATERIALS RESEARCH AND DEVELOPMENT COUNCIL Moringa oleifera -A National Crop for Economic Growth and Development PROCEEDINGS OF THE FIRST NATIONAL SUMMIT ON MORINGA DEVELOPMENT. Dorothea Shailemo. Download PDF. Download Full PDF Package. This paper. A short summary of this paper.

Hydrothermal Treatment of Arsenic Sulfide Residues from ...
Hydrothermal Treatment of Arsenic Sulfide Residues from ...

In the smelting of ,copper, or lead-zinc ore, larger amounts of acidic ,wastewater, are discharged when gaseous emission containing SO 2, As, Cu, Pb, Zn and other impurities are washed with diluted ,acid, . Moreover, wasted electrolyte with a high concentration of arsenic is produced abundantly in ,copper, and lead-zinc electrolyte processes [8,9].

US4705639A - Ferrous and sulfide treatment of ...
US4705639A - Ferrous and sulfide treatment of ...

This method produces approximately one-fourth the sludge generated by the previously known acidic reaction treatment using only ferrous ,sulfide,. The present invention involves a treatment technique for drastically reducing the volume of hazardous sludge generated by the chemical reduction of chromium contaminants and the precipitation of heavy metal contaminants from contaminated electroplating ,wastewater,.

Biological and Chemical Wastewater Treatment Processes ...
Biological and Chemical Wastewater Treatment Processes ...

2/12/2014, · When chlorine gas is dissolved in ,wastewater,, it rapidly hydrolyzes to hydrochloric ,acid, (HCl) and hypochlorous ,acid, (HOCl) as shown in the following chemical ,equation,: Cl 2 +H 2 O ↔ H + +Cl - …

CN1343623A - Wet process for treating copper or arsenic ...
CN1343623A - Wet process for treating copper or arsenic ...

A process for preparing ,copper, sulfate from the ,sulfide, containing ,copper, and arsenic includes mixing the said ,sulfide, with 2-valence iron ions and compressed air or oxygen, stirring at 60-95 deg.C, and extracting reaction in sulfuric ,acid, solution to obtain ,copper, sulfate. Its advantages include simple apparatus no exhaustion of waste liquid and gas, and high output rate and quality of product.

African Journal of Biotechnology - articles
African Journal of Biotechnology - articles

Whole body and egg amino ,acid, composition of Nile perch, Lates niloticus (Linnaeus, 1758) and prediction of its dietary essential amino ,acid, requirements. December 2012 Eggs and tissue of Nile perch juveniles were analysed in order to derive the essential amino ,acid, dietary requirements for Nile perch larvae and juveniles, using the A/E ratio.

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