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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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Methods for Chemical Analysis of Water and Wastes
Methods for Chemical Analysis of Water and Wastes

----- ABSTRACT This manual provides test procedures approved for the monitoring of ,water, supplies, ,waste, discharges, and ambient waters, under the Safe Drinking ,Water, Act, the National Pollutant Discharge Elimination System, and Ambient Monitoring Requirements of Section 106 and 208 of Public Law 92-500 The test methods have been selected to meet the needs of federal legislation and to …

Drain Disposal of Chemicals | Lab Manager
Drain Disposal of Chemicals | Lab Manager

Before considering drain disposal, be certain that the sewer flows to a ,wastewater, treatment plant and not to a stream or other natural water course. Check with the local ,waste water, treatment plant authority to determine what substances are acceptable for drain disposal.

Experienced supplier of Sodium Sulfate MVR Evaporator
Experienced supplier of Sodium Sulfate MVR Evaporator

It is difficult to process the ,wastewater, because of the high concentration of pollution and poor biodegradation. The technical solution to be supplied by Myande including MVR evaporation and concentration, frozen crystallization and fluid bed drying technology will be applied to process ,wastewater, for recycling industrial ,sodium sulfate,.

Biological removal of iron and sulfate from synthetic ...
Biological removal of iron and sulfate from synthetic ...

Therefore, this system can be used for ,sulfate, and iron-based ,acid, waste products such as Kashmar cotton delinting factory ,wastewater, due to alkalinity production. At the same time, biological methods such as the present study are applicable to a higher range of heavy metals and electrical conductivity than the common SRBs which may be due to the type of microorganism.

Water Testing Standards - ASTM International
Water Testing Standards - ASTM International

Standard Test, Methods, for Dissolved Oxygen in, Water:, D1067 - 16: Standard Test, Methods, for, Acidity, or Alkalinity of, Water:, D1068 - 15: Standard Test, Methods, for Iron in, Water:, D1126 - 17: Standard, Test Method, for Hardness in, Water:, D1179 - 16: Standard, Test Methods, for Fluoride Ion in, Water:, D1246 - 16: Standard, Test Method, for Bromide Ion in, Water:, D1253 - 14

Determination of Total Cyanide in Municipal Wastewater and ...
Determination of Total Cyanide in Municipal Wastewater and ...

• ,Sodium, nitrate (FW 84.99) • ,Sodium sulfate, (FW 142.04) Samples Certified ,Wastewater, Standard for cyanide, 40 µg/L total cyanide (20 µg/L free cyanide from potassium cyanide and 20 µg/L complexed cyanide from potassium ferricyanide in 0.5% potassium hydroxide). Municipal ,wastewater, effluent samples were collected at the same time and ...

Sulfuric acid - Cleanup Methods
Sulfuric acid - Cleanup Methods

The ,acid, beneath the skin is best recovered by pumping. Unconfined spills of sulfur trioxide & oleums of all strengths can be treated with excess anhydrous ,sodium sulfate, which forms a concrete-like residue that can be sprayed with water within 1 hour, dissolving it slowly.

Recovery of Volatile Fatty Acids from Fermented Wastewater ...
Recovery of Volatile Fatty Acids from Fermented Wastewater ...

common ions found in fermented ,wastewater, (see Table 1 for the typical composition of fermented ,wastewater,). Depending on the ,wastewater,’s origin and fermentation approach, the concentration of species may vary within the given ranges. The ,acid, content of a VFA-containing aqueous solution is a critical parameter to consider for choosing a ...

7. ANALYTICAL METHODS
7. ANALYTICAL METHODS

absorption spectroscopy, (GFAAS,), (Methods 208.2 and 7081), are the techniques recommended by the Office of Solid Waste and Emergency Response of EPA for determining ppb (μg/L) levels of barium in water and waste water (EPA 1974, 1979, 1992, 1994a, 1994b). Parts-per-trillion (sub μg/L) levels of

Water Analyses - Eurofins Scientific
Water Analyses - Eurofins Scientific

Eurofins offers several methods for detecting possible contamination of sediment. Below is an overview of the most common water analyses. Organic parameters. • Mineral oil. •, Polycyclic Aromatic Hydrocarbons., • Polychlorinated biphenyls. • Pesticides. • Volatile organic compounds. • Chlorobenzenes.

Sodium persulfate - Wikipedia
Sodium persulfate - Wikipedia

Sodium, persulfate is the inorganic compound with the formula Na 2 S 2 O 8. It is the ,sodium, salt of peroxydisulfuric ,acid,, H 2 S 2 O 8, an oxidizing agent. It is a white solid that dissolves in water. It is almost non-hygroscopic and has good shelf-life.

US4717378A - Methods for detecting dehydration of a ...
US4717378A - Methods for detecting dehydration of a ...

A visual (as opposed to mechanical or electronic), method for detecting, the state of dehydration (or hydration) of a biomedical hydrogel is disclosed. The, method, contemplates incorporating a pH...

sodium sulfate 7757-82-6
sodium sulfate 7757-82-6

Use: ,Sodium Sulfate, is a moderately water and ,acid, soluble ,Sodium, source for uses compatible with sulfates.,Sulfate, compounds are salts or esters of sulfuric ,acid, formed by replacing one or both of the hydrogens with a metal.

[SnS4]4- clusters modified MgAl-LDH composites for mercury ...
[SnS4]4- clusters modified MgAl-LDH composites for mercury ...

[SnS4] 4-clusters modified ,MgAl-LDH composites for mercury ionsremoval, from ,acid wastewater,* Lihong Chen a, Haomiao Xu a, *, Jiangkun Xie a, b, Xiaoshuang Liu a, Yong Yuan a, Ping Liu a, Zan Qu a, Naiqiang Yan a a School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China b Shanghai Institute of Pollution Control and Ecological Security ...

A Rapid Field Detection Method for Arsenic in Drinking Water
A Rapid Field Detection Method for Arsenic in Drinking Water

The relative standard deviation (RSD) for 100 μM Ag(I) ions was 2.05% (n=7). The proposed method was applied for the determination Ag(I) ions in ,water, and ,waste water, samples.

Textile Wastewater Treatment: A Successful Return on ...
Textile Wastewater Treatment: A Successful Return on ...

4/7/2018, · FINISHING: Starch, tallow, ,sodium, chloride, ,sodium sulfate,; RECOVER AND REUSE: IMPROVE YOUR ROI. It is right to say that textile ,wastewater, can be considered a useful resource as with proper technology we can recover sizes, dyes, chemicals and water.

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