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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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Wastewater Laboratory Procedures And Chemistry
Wastewater Laboratory Procedures And Chemistry

If the ,wastewater, is exposed to the atmosphere, H2S will be released and a typical rotten egg odor will be detected. Anaerobic bacteria found in ,wastewater can, liberate H2S from the solids. When the gas leaves the ,wastewater, stream and comes in contact with moisture and oxygen, sulfuric ,acid, is formed which is very corrosive to concrete.

Reagent for wastewater treatment and water treatment ...
Reagent for wastewater treatment and water treatment ...

It can be applied at every stage ,of wastewater, treatment, improving the entire treatment process. MagTreat ® is as a concentrated suspension used for the neutralization of ,acidic, effluents, precipitation of heavy metals, reduction of hydrogen sulfide emissions COD and phosphates, and improving filtration properties of treated sludge, often producing lower levels of solid waste.

Comprehensive comparison of acidic and alkaline anaerobic ...
Comprehensive comparison of acidic and alkaline anaerobic ...

1/3/2021, · Compared to, alkaline, fermentation, acidic fermentation produced a lower yield of VFAs, but resulted in a better sludge dewaterability and lower release of TN and TP. Thus, VFAs from WAS via acidic fermentation may be a suitable source of raw material for the BNR process.

Research of acid mine wastewater treatment technology
Research of acid mine wastewater treatment technology

component cooling water, such as the mine air compressor cooling water, etc. The mining industry, wastewater, is with no harm to the environment, and after cooling it can be recycled for production. Acidic mining, waste, water is rock dust water, and its major pollutant is suspended solids, after precipitation it can be recycled. And, acid,ic mining

What Causes Ocean Acidification? 7 Main Causes
What Causes Ocean Acidification? 7 Main Causes

Wastewater, should maintain an alkalinity between six and nine (on a scale where 0 is most ,acidic, and 14 is most ,alkaline,). Unfortunately, much of it is below six. Since there are few enforceable international standards, some nation-states allow a greater measure of solvents, cleaners and grease in the ,wastewater, emancipated into the sea.

Waste Gas Treatment Methods in PCB Industry_JRPanel
Waste Gas Treatment Methods in PCB Industry_JRPanel

This type of waste gas is mainly produced by alkaline etching and solder mask development process, and its main component is, ammonia gas., 3.

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

The ,main, methods of chemical ,wastewater, treatment are neutralization and oxidation. 12.1. Neutralization ,of waste water, . ,Wastewater, containing mineral acids or alkalis is neutralized before being discharged into reservoirs or before being used in technological processes. Virtually neutral are considered to be water having a pH of 6.5 ... 8.5.

Waste management in the Wine Industry - SlideShare
Waste management in the Wine Industry - SlideShare

Since ,potassium, bitartrate ,can, also be dissolved with ,potassium hydroxide, (KOH), this material is an obvious alternative. Where there are already very high K levels present in the soils of the irrigation area, the use of KOH and, indeed, of the ,wastewater, itself will …

Does Your Plant Have a Mercury Problem?
Does Your Plant Have a Mercury Problem?

Sodium ,hydroxide, (caustic soda), ,potassium hydroxide,, chlorine and hydrochloric ,acid, (muriatic ,acid,) all ,can, be produced in the mercury-cell process. ... therefore, it usually is necessary to ,treat, the ,wastewater,'s gross contaminants first and to use the ion exchange as a final polishing step.

Characteristics of Agricultural and Food Wastewater ...
Characteristics of Agricultural and Food Wastewater ...

20/3/2021, · The pollutants can enter the, wastewater streams, through spills, leaks, and, wasting, of by-products. Apart from whey, which is, acidic,, most dairy, wastewater streams, are neutral or slightly, alkaline,, but they tend to become, acidic, rapidly due to the lactic, acid, produced as a result of fermentation of lactose.

The study of the recovery of highly purified terephthalic ...
The study of the recovery of highly purified terephthalic ...

A new process has been developed for recovering the terephthalic ,acid, (TPA) with high purity from alkali weight-reduction ,wastewater,. Three methods were used to purify the mother liquor: coagulation-sedimentation, carbon adsorption and the combination of these two methods. The results show that the nature of the TPA is greatly improved by coagulation-sedimentation or by carbon adsorption ...

Detail of the Wastewater Treatment Process | Civilengi
Detail of the Wastewater Treatment Process | Civilengi

All around the world, there is a lot of shortage of water so we need to purify and reuse the water by wastewater treatment. By using some purification process the water can be purified. In which we use, alum, as a main component for water purification at home. By boiling water the germs and bacteria reduced and it can be used for portable use.

Mining Wastewater | liquideffluents
Mining Wastewater | liquideffluents

17/5/2012, · Skousen, Hilton and Faulkner (1996) discuss the addition of such chemicals, and also note that some operators have also used chemicals such as ,potassium hydroxide,, magnesium ,hydroxide, and magna lime with good results. As seen, the treatments used for ,mining wastewater, are vast and varied.

Improving efficiency of electroplating wastewater ...
Improving efficiency of electroplating wastewater ...

Depending on the chemical composition of waste, there are five types of electroplating wastewater: Acidic — Generated in the first pickling process, acidic copper, nickel and zinc plating (pH less than 6.5) Alkaline — Generated in the process of decontamination (pH greater than 8.5)

Extractable Organic Components and Nutrients in Wastewater ...
Extractable Organic Components and Nutrients in Wastewater ...

As all seven strains failed to grow in ,wastewater,, attempts were made to determine if any organic ,component of wastewater, was inhibitory. Growth of two E. coli strains (one each of O157:H7 and ONT:H32) was monitored in reduced-strength LB-MS broth supplemented with organic extracts of neutral, ,acidic,, ,or alkaline, fractions ,of wastewater, (Fig. 3).

What Causes Ocean Acidification? 7 Main Causes
What Causes Ocean Acidification? 7 Main Causes

Wastewater, should maintain an alkalinity between six and nine (on a scale where 0 is most ,acidic, and 14 is most ,alkaline,). Unfortunately, much of it is below six. Since there are few enforceable international standards, some nation-states allow a greater measure of solvents, cleaners and grease in the ,wastewater, emancipated into the sea.

Increasing the wastewater treatment
Increasing the wastewater treatment

Biological ,wastewater, treatment is one of the ,main, stages ,of wastewater, treatment at housing and public utilities, pulp and paper plants, food industries, chemical plants producing alcoholic and non-alcoholic drinks. In fact, this is cleaning of the dissolved part of the contamination with activated sludge or, in other words, bacteria.

Urea - Wikipedia
Urea - Wikipedia

Dissolved in water, it is neither ,acidic, nor ,alkaline,. The body uses it in many processes, most notably nitrogen excretion . The liver forms it by combining two ammonia molecules (NH 3 ) with a carbon dioxide (CO 2 ) molecule in the urea cycle .

Sci Forschen Water and Wastewater Treatment
Sci Forschen Water and Wastewater Treatment

wastewater, [27]. Different ,alkaline, materials such as Ca(OH) 2, CaCO 3, NaOH and so on are used to raise the pH of ,acidic, effluent. Research is being carried out continuously to find cost effective, efficient and easy to use replacement for these expensive chemicals and methods. In this study

Improving efficiency of electroplating wastewater ...
Improving efficiency of electroplating wastewater ...

Depending on the chemical composition of waste, there are five types of electroplating wastewater: Acidic — Generated in the first pickling process, acidic copper, nickel and zinc plating (pH less than 6.5), Alkaline, — Generated in the process of decontamination (pH greater than 8.5)

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