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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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oil separator compressor
CN101172725A - Method for processing waste alkali liquid ...
CN101172725A - Method for processing waste alkali liquid ...

The invention provides a treatment method of the waste ,alkali, liquor produced in the production process of butyl alcohol. The treatment method comprises the steps as follows: the pH value of waste ,alkali, liquor is adjusted into acidity at normal temperature and normal pressure, and the oil phase and the water phase are separated after the waste ,alkali, liquor is settled and layered; and the ...

Green Chemistry
Green Chemistry

of the aqueous ,alkali,; secondly, the ,liquid alkali, is 50 strongly corrosive to the equipment; finally, the volume of emission of ,alkali wastewater, is large and a lot ,of liquid acid, is usually required for ,neutralization, 2, 3. The hydrogenation of 2E2H is composed of the processes of crude hydrogenation

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

2/12/2014, · Chemical ,treatment, is now considered as a tertiary ,treatment, that can be more broadly defined as “,treatment, of ,wastewater, by a process involving chemical ,treatment,”. The mostly implemented chemical ,treatment, processes are: chemical precipitation, neutralization, adsorption, disinfection (chlorine, ozone, ultraviolet light), and ion exchange.

Neutralization of Acid Wastewater and Magnesium Hydroxide ...
Neutralization of Acid Wastewater and Magnesium Hydroxide ...

Neutralization, of ,Acid Wastewater, and Magnesium Hydroxide Slurry from Seawater Electrolytic Pretreatment December 2014 Advanced Materials Research 1073-1076:949-954

List of Residual Waste Beneficial Use General Permits
List of Residual Waste Beneficial Use General Permits

Beneficial use, of weak ,alkali, liquor as an alkaline material to treat acid mine drainage ,wastewater,. WMGR081 (eLibrary) Processing by disassembling, mechanical processing (by sizing, shaping, separating and volume reduction only), and associated storage prior to reuse or recycling at the processing or transfer facility, of uncontaminated and source-separated electronic devices.

Handbook for Sampling and Sample Preservation of Water and ...
Handbook for Sampling and Sample Preservation of Water and ...

This handbook primarily addresses the water and ,wastewater, types shown below and addresses in a limited way, sampling of oceans and estuaries.. 1. Municipal wastewaters 4. Agricultural run-off 2. ,Industrial, wastewaters 5. ,Wastewater, sludges 3. Surface waters and 6. Ground water sediments 7.

Ultrafiltration - Wikipedia
Ultrafiltration - Wikipedia

Ultrafiltration, (UF) is a variety of membrane filtration in which forces like pressure or concentration gradients lead to a separation through a semipermeable membrane. Suspended solids and solutes of high molecular weight are retained in the so-called retentate, while water and low molecular weight solutes pass through the membrane in the permeate (filtrate).

Alkaline Wastewater - an overview | ScienceDirect Topics
Alkaline Wastewater - an overview | ScienceDirect Topics

After recovering NaOH and Na 3 PO 4, the residual liquid is an alkaline wastewater and contains fluoride. The treatment of this wastewater is to neutralize by the addition of waste acid or acidic wastewater to pH 5, and then, lime is added to precipitate fluoride. The reactions are as follows: (8.,12) 2HF + Ca OH 2 = CaF 2 + 2H 2 O

Design Manual Neutralization Of Acid Mine Drainage
Design Manual Neutralization Of Acid Mine Drainage

Its treatment consists of ,neutralization, with a suitable ,alkali,, oxidation of ferrous iron to the insoluble ferric form, and removal of the resulting metal precipitants by a sedimentation process. There is one basic process system for the treatment of AMD; however, there are many options available to the designer when evalu- ating each of the unit processes or subprocesses within the overall system.

Natural Zeolites in Water Treatment – How Effective is ...
Natural Zeolites in Water Treatment – How Effective is ...

8/11/2011, · Acid ,treatment, is among the most common and simple methods for zeolite modification. The effectiveness of acid ,treatment, depends on the chemical composition, structure, mineral purity, and the working conditions. Dissolution of some amorphous materials that block the pores of natural zeolites is another consequence of acid modification.

Effluent Treatment Plant Design Operation And Analysis Of ...
Effluent Treatment Plant Design Operation And Analysis Of ...

Effluent Treatment Plant: Design, Operation And Analysis, Of ,Waste Water, 18create fine bubbles that attach to floc resulting in a floating mass of concentrated floc.The floating floc blanket is removed from the surface and clarified water is withdrawnfrom the bottom of the DAF tank.2.3 Biological Unit ProcessesBiological ,treatment, is an important and integral part of any ,wastewater treatment, ...

Hospital Waste Water Treatment By Electro Chemical Process
Hospital Waste Water Treatment By Electro Chemical Process

4.1.3 ,Acid, or ,Alkali, H2SO4 ,acid, or NaOH ,alkali, to be used for Ph maintain of waste water. The optimum Value of pH necessary for the Fenton process. 4.1.4 ,Reaction, Mechanism Fenton Process The ,reaction, of Fenton reagent and oxidizing agent H 2 O 2.The generation of hydroxyl radicals following the chain ,reaction,. 2+Fe • + H 2 O

Efficient Synthesis of α-FeOOH from Pickling Wastewater in ...
Efficient Synthesis of α-FeOOH from Pickling Wastewater in ...

A novel technol. was developed for the ,treatment, of a stainless steel ,wastewater,, which contains high nitrate concn. (6.8 g N-NO3-/L), ,acidic, pH (pH 3.3), and high concn. of metals. Denitrification was performed in an anaerobic swirling fluidized-bed membrane bioreactor (ASFMBR) with synthetic and real ,wastewater,.

Adsorption of emerging contaminants from water and ...
Adsorption of emerging contaminants from water and ...

15/3/2021, · Table 1 summarizes the types, impacts and general ,treatment, methods of some typical aqueous ECs. At present, the methods commonly used to remove ECs from water mainly include microbial method (Ferreira et al., 2016), electrochemical method (Barrios et al., 2016), adsorption method, membrane process, and chemical oxidation process (Acero et al., 2015).

Utilization of wastewater from zeolite production in ...
Utilization of wastewater from zeolite production in ...

1/11/2020, · As a result, the stirring rate, initial temperature and stirring time of the saponification reaction were finally determined to be, 55 r/min, 40 °C and 45 min,, respectively. 3.2 Comparison of FAS with different alkali sources The lye having the same concentration of OH− as that of the wastewater was prepared with sodium hydroxide for the synthesis of FAS.

Extracellular polymeric substances (EPS) of microbial ...
Extracellular polymeric substances (EPS) of microbial ...

1/11/2010, · In biological ,wastewater treatment, systems, most of the microorganisms are present in the form of microbial aggregates, such as sludge flocs, biofilms, and granules. The presence of ,extracellular polymeric, substances (EPS), a complex high-molecular-weight mixture of polymers, in pure cultures, activated sludge, granular sludge, and biofilms, has been confirmed and observed using various ...

12 Treatment Technologies – PFAS — Per- and ...
12 Treatment Technologies – PFAS — Per- and ...

Limited application technologies–Technologies that have been implemented on a limited number of sites, by a limited number of practitioners, and may not have been documented in peer-reviewed literature.These limited application technologies for liquids and solids are contained in the technology comparison Tables 12-1 and 12-2 (provided as separate PDF) and discussed in Section 12.5 and ...

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