Welcome to the company ! we have many years of professional experience !
rsdgj@pyzyrsd.com +86 513525609655

Treatment technology of fracturing fluid backflow

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.

Certificate of Honor

Get in touch with us

We will confidentially process your data and will not pass it on to a third party.

Treatment technology of fracturing fluid backflow
TREATMENT OF ACID MINE DRAINAGE USING MAGNESIUM …
TREATMENT OF ACID MINE DRAINAGE USING MAGNESIUM …

A novel ,process, is proposed whereby magnesium hydroxide is being used for ,neutralization, of free ,acid, and subsequent raising of the ,mine wastewater, pH to above 7 to facilitate rapid iron (II) oxidation and precipitation as ferric hydroxide. This is followed ,by lime treatment, for …

VitaSOFT Acid Mine Drainage Water Treatment | Climate ...
VitaSOFT Acid Mine Drainage Water Treatment | Climate ...

An integrated ,acid mine, drainage (AMD) solution has been developed using a combination of biological and chemical ,treatment, steps to produce desalinated water fit for reuse or discharge. This ,process, produces a smaller volume of solid waste when compared with conventional ,lime, or limestone ,neutralization, processes and offers the opportunity to extract valuable by-products such as elemental ...

A comparison of neutralization efficiency of chemicals ...
A comparison of neutralization efficiency of chemicals ...

22/2/2016, · Some common techniques include limestone and ,lime treatment,, biological sulphate reduction and passive ,treatment, in alkalinity generating artificially constructed wetlands. The most widespread method used to mitigate acidic effluents is an active ,treatment process, involving addition of a chemical-neutralizing agent (Coulton et al. 2003).

Acid Mine Drainage Reduced with Calcium Hydroxide (Lime ...
Acid Mine Drainage Reduced with Calcium Hydroxide (Lime ...

Unfortunately, the ,process, of mining the coal has also been a source of pollution – it is estimated that over 13,000 miles of stream face ,acid mine, drainage problems. ,Acid mine, drainage is polluted water that contains high levels of iron and aluminum, with a low pH. The low acidity of the water is a byproduct of the oxidation of pyrite, the ...

Neutralization of acid mine Combustion of South African ...
Neutralization of acid mine Combustion of South African ...

neutralization, with ,lime, (CaO) or limestone (CaCO 3). In view of the costs involved in the liming ,process, and diminishing ,lime, reserves, and because the efficiency of ,neutralization by lime,-stone progressively declines because of armouring due to the ferric oxyhydroxides that form, alternative ,treatment, methods are being explored.

Sustainable Treatment of Acid Mine Drainage
Sustainable Treatment of Acid Mine Drainage

Current ,treatment, of the PCB ,acid, waste (1/2) •Batch ,process,: 1. ,Neutralization, of the acids •Calcium hydroxide (,lime,): Ca(OH) 2 •Sodium hydroxide: NaOH 2. Precipitation of the heavy metals •Precipitation agents (Na 2 S) •Complexing agents •Flocculants

Treatment of Acid Mine Wastewater by Sulfide Precipitation ...
Treatment of Acid Mine Wastewater by Sulfide Precipitation ...

Acid mine wastewater, was treated by sulfide precipitation - ,lime neutralization process,.In the sulfide precipitation with sodium sulfide dosage 0.80 g/L and reaction time 15 min,the recovery rate of Cu and the precipitation rate of Fe can reach 99.96%and 7.92%respectively,it indicates that Cu and Fe can be removed effectively.After ,lime neutralization,,the treated ,acid mine wastewater, can meet ...

Chemical Stability of Acid Rock Drainage Treatment Sludge ...
Chemical Stability of Acid Rock Drainage Treatment Sludge ...

To assess the chemical stability of sludges generated by neutralizing ,acid, rock drainage (ARD) with alkaline reagents, synthetic ARD was treated with hydrated ,lime, (batch and high-density sludge ,process,), limestone, and two proprietary reagents (KB-1 and Bauxsol). The amorphous metal hydroxide sludge produced was leached using deionized water, U.S. EPA methods (toxicity characteristic leaching ...

US Patent for Lime neutralization process for treating ...
US Patent for Lime neutralization process for treating ...

A ,lime,-,treatment, method is disclosed to neutralize acidic waters containing heavy metals and sulphate and precipitate the metals as hydroxides along with calcium sulphate solids which are called sludge. The method comprises neutralizing the water in two reactors, the pH of the first reactor being increased to 4-4.5 using a predetermined amount of recycled sludge to precipitate only ferric ...

Neutralization of acid mine Combustion of South African ...
Neutralization of acid mine Combustion of South African ...

neutralization, with ,lime, (CaO) or limestone (CaCO 3). In view of the costs involved in the liming ,process, and diminishing ,lime, reserves, and because the efficiency of ,neutralization by lime,-stone progressively declines because of armouring due to the ferric oxyhydroxides that form, alternative ,treatment, methods are being explored.

Acid Mine Drainage Reduced with Calcium Hydroxide (Lime ...
Acid Mine Drainage Reduced with Calcium Hydroxide (Lime ...

Unfortunately, the ,process, of mining the coal has also been a source of pollution – it is estimated that over 13,000 miles of stream face ,acid mine, drainage problems. ,Acid mine, drainage is polluted water that contains high levels of iron and aluminum, with a low pH. The low acidity of the water is a byproduct of the oxidation of pyrite, the ...

A comparison of neutralization efficiency of chemicals ...
A comparison of neutralization efficiency of chemicals ...

22/2/2016, · Some common techniques include limestone and ,lime treatment,, biological sulphate reduction and passive ,treatment, in alkalinity generating artificially constructed wetlands. The most widespread method used to mitigate acidic effluents is an active ,treatment process, involving addition of a chemical-neutralizing agent (Coulton et al. 2003).

Recovery of Byproducts from Acid Mine Drainage Treatment ...
Recovery of Byproducts from Acid Mine Drainage Treatment ...

5.2.1 ,Neutralization, Using ,Lime, 103. 5.2.1.1 Conventional ,Treatment, With ,Lime, 103. 5.2.1.2 High-Density Sludge ,Process, 104. 5.2.2 Limestone ,Neutralization, 105. 5.2.3 Limestone Handling and Dosing System 106. 5.2.4 Utilization of Alkali in ,Mine, Water for Removal of Iron(II) 107. 5.2.5 Modeling 107. 5.2.6 ,Lime,/Limestone ,Neutralization, 109

Recovery of Byproducts from Acid Mine Drainage Treatment ...
Recovery of Byproducts from Acid Mine Drainage Treatment ...

5.2.1 ,Neutralization, Using ,Lime, 103. 5.2.1.1 Conventional ,Treatment, With ,Lime, 103. 5.2.1.2 High-Density Sludge ,Process, 104. 5.2.2 Limestone ,Neutralization, 105. 5.2.3 Limestone Handling and Dosing System 106. 5.2.4 Utilization of Alkali in ,Mine, Water for Removal of Iron(II) 107. 5.2.5 Modeling 107. 5.2.6 ,Lime,/Limestone ,Neutralization, 109

Acid Mine Drainage Solutions for the Mineral Industry
Acid Mine Drainage Solutions for the Mineral Industry

Acid Mine, Drainage ,Acid Mine, Drainage. ,Acid mine, drainage ... The most commonly used ,neutralization, agent is ,lime,. ... and the water quality required for the ,process,, there are a number of ,treatment, options. This ,process, flow diagram depicts one possible ,treatment, design for flow rates of 500 gpm or less.

Chat Online Inquiry Email

Business cooperation

+86 513525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City