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acidic gas field fracturing flow-back fluids discharge symptoms treatment

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 gas field fracturing flow-back fluids discharge symptoms treatment
Metal recovery of solid metallurgical wastes ...
Metal recovery of solid metallurgical wastes ...

pickling ,wastewater, [10], gold plant waste streams [11], spent ,copper,-cyanide electroplating electrolytes [12], and stripping solutions in the manufacture of printed circuit boards [13]. ,Copper, electrodeposition onto porous, fluidized and spouted bed electrodes and the treatment of ,copper,-,containing, waste streams is studied by J. W. Evans

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

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. This process produces organic wastewater and waste.

Use of Sorption of Copper Cations by Clinoptilolite for ...
Use of Sorption of Copper Cations by Clinoptilolite for ...

type 4 A with a pore size of 0.4 nm. Its chemical composition in a dehydrated state is expressed by the formula: Na2O Al2O3 2 SiO2. Calsite is a synthetic zeolite of the type 5 A with a pore size of 0.5 nm. Its chemical composition in the dehydrated state is …

TREATMENT OF ACIDIC WASTEWATER FROM THIEN KE TIN ...
TREATMENT OF ACIDIC WASTEWATER FROM THIEN KE TIN ...

from the ,wastewater,, such as iron from 143.1 mg/L to 0.3 mg/L, ,copper, from 16.32 mg/L to 0.04 mg/L and manganese from 10.9 mg/L to 0.05 mg/L. The continuous mode with a hydraulic load of 100 l/h and an according retention time of three days showed constitutive contaminant removal. The effluent pH of the system was around 7 within six-day period.

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, SO2, As, Cu, Pb, Zn and other impurities are washed with diluted acid [7]. Moreover, wasted electrolyte with a high concentration of arsenic is produced abundantly in ,copper, and lead-zinc electrolyte processes [8,9].

Detection and diversity of copper containing nitrite ...
Detection and diversity of copper containing nitrite ...

Sequences obtained with the primers fnirK2F and fnirK1R were aligned with known and putative ,copper,-,containing, nitrite reductases from bacteria and fungi as well as with a multi-,copper, oxidase (Fig. 1). Two amino acid residues (His and Met) in type 1 ,copper, binding ligands were found at the beginning of the detected NirK sequences (Fig. 1).

Agricultural wastewater treatment - Wikipedia
Agricultural wastewater treatment - Wikipedia

Agricultural ,wastewater, treatment is a farm management agenda for controlling pollution from surface runoff that may be contaminated by chemicals in fertiliser, pesticides, animal slurry, …

TREATMENT OF ACIDIC WASTEWATER FROM THIEN KE TIN ...
TREATMENT OF ACIDIC WASTEWATER FROM THIEN KE TIN ...

from the ,wastewater,, such as iron from 143.1 mg/L to 0.3 mg/L, ,copper, from 16.32 mg/L to 0.04 mg/L and manganese from 10.9 mg/L to 0.05 mg/L. The continuous mode with a hydraulic load of 100 l/h and an according retention time of three days showed constitutive contaminant removal. The effluent pH of the system was around 7 within six-day period.

Removal of Copper from Wastewater using Low Cost Adsorbents
Removal of Copper from Wastewater using Low Cost Adsorbents

Tumkur, Karnataka, India respectively. The ,wastewater, was obtained from an electroplating industry which had ,copper, concentration of 60mg/L. Horiba Jobin Yvon make (JY 200 model) Inductively Coupled Plasma Spectrometer (ICP) is used to determine the heavy metals contents. Argon gas is commonly used in the system and plasma temperature can

Studies on elimination of copper from wastewater by ...
Studies on elimination of copper from wastewater by ...

Copper, is an essential element for living organisms, including human and is also necessary in small amounts in our diet to ensure good health. However, too much of ,copper, can cause adverse health effects including vomiting, diarrhea, stomach cramps and nausea5. ,Copper, is stored mainly in liver, brain, heart, kidney and muscles.

The method of obtaining of copper oxychloride
The method of obtaining of copper oxychloride

The objective is achieved by the fact that the spent ,acidic, etching solution ,composition,, g/l: salt of ,copper, (CuCl 2, CuCl), ,copper, 120-200; hydrochloric acid (HCl) 30-150; water rest, which added 30% hydrogen peroxide in proportion 30-60 ml per liter of waste solution is mixed with the spent alkaline medioambiental solution of a complex salt of ,copper, [Cu(NH 3) 4]Cl ,containing, 30-150 …

CHEMICAL METHODS OF PURIFICATION OF WASTEWATER …
CHEMICAL METHODS OF PURIFICATION OF WASTEWATER …

The reagents are selected depending on the ,composition, and concentration ,of acidic waste water,. There are three types of acid-,containing wastewater,: water ,containing, weak acids (H2C03, CH3COOH); water ,containing, strong acids (HC1, HNO3); waters ,containing, sulfuric and sulfuric acid.

14 Industrial Wastewater Treatment Principals and Ideas
14 Industrial Wastewater Treatment Principals and Ideas

Generally, alkaline mercury-,containing wastewater, is usually treated by chemical coacervation or sulfide precipitation; ,acidic, mercury-,containing wastewater, can be treated by metal reduction; low-concentration mercury-,containing wastewater, can be treated by activated carbon adsorption, chemical coacervation or activated sludge; organic mercury ,wastewater, is difficult to treat and is usually ...

Metal recovery of solid metallurgical wastes ...
Metal recovery of solid metallurgical wastes ...

pickling ,wastewater, [10], gold plant waste streams [11], spent ,copper,-cyanide electroplating electrolytes [12], and stripping solutions in the manufacture of printed circuit boards [13]. ,Copper, electrodeposition onto porous, fluidized and spouted bed electrodes and the treatment of ,copper,-,containing, waste streams is studied by J. W. Evans

The method of obtaining of copper oxychloride
The method of obtaining of copper oxychloride

The objective is achieved by the fact that the spent ,acidic, etching solution ,composition,, g/l: salt of ,copper, (CuCl 2, CuCl), ,copper, 120-200; hydrochloric acid (HCl) 30-150; water rest, which added 30% hydrogen peroxide in proportion 30-60 ml per liter of waste solution is mixed with the spent alkaline medioambiental solution of a complex salt of ,copper, [Cu(NH 3) 4]Cl ,containing, 30-150 g/l ...

Acid mine drainage - Wikipedia
Acid mine drainage - Wikipedia

The most commonly mined ore of copper, chalcopyrite, is itself a copper-iron-sulfide and occurs with a range of other sulfides. Thus, copper mines are often major culprits of acid mine drainage. At some mines, acidic drainage is detected within 2–5 years after mining begins, whereas at other mines, it is not detected for several decades.

Selective Sulphide Precipitation of Copper Nickel and ...
Selective Sulphide Precipitation of Copper Nickel and ...

wastewater,, ,containing, 10 g/L Cu2+, 0.3 g/L Ni2+ and 3 g/L Zn 2+ ions, were treated at pH 2.3 and ,copper, was precipitated as CuS with almost 100% of efficiency.

Mining Wastewater | liquideffluents
Mining Wastewater | liquideffluents

17/5/2012, · The mining of metallic ores (e.g. iron, ,copper,, lead, zinc, molybdenum, and tungsten), precious metals such as gold, platinum and silver, and large scale coal mining all produces ,wastewater, (U.S.EPA, 2010). As discussed below, this ,waste water, is usually mine drainage pumped from mining areas, water used and discharged from the processing of the ...

Selective Sulphide Precipitation of Copper Nickel and ...
Selective Sulphide Precipitation of Copper Nickel and ...

wastewater,, ,containing, 10 g/L Cu2+, 0.3 g/L Ni2+ and 3 g/L Zn 2+ ions, were treated at pH 2.3 and ,copper, was precipitated as CuS with almost 100% of efficiency.

Chemical precipitation of heavy metals from wastewater by ...
Chemical precipitation of heavy metals from wastewater by ...

Nevertheless, the traditional reagents have several disadvantages: (1) most of the heavy metal ions exist in ,acidic, solution and sulfide reagents in ,acidic, solution can form toxic hydrogen sulfide gas, which has detrimental effect on human health and environment, (2) the sulfide of heavy metal formed is difficult to filter due to its small particle size, (3) the insoluble hydroxide of amphoteric metals, such as ,copper, …

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