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Precipitation of acid wastewater by rare earth oxalic acid

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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Precipitation of acid wastewater by rare earth oxalic acid
Industrial wastewater treatment - Wikipedia
Industrial wastewater treatment - Wikipedia

Industrial wastewater treatment, describes the processes used for treating ,wastewater, that is produced by industries as an undesirable by-product. After treatment, the treated industrial ,wastewater, (or effluent) may be reused or released to a sanitary sewer or to a surface water in the environment.. Most industries produce some ,wastewater,.Recent trends have been to minimize such production or ...

Using Vitamin C to Neutralize Chlorine in Water Systems
Using Vitamin C to Neutralize Chlorine in Water Systems

The reaction (Tikkanen and others 2001) of ,sodium, ascorbate with chlorine is shown below: C 5 H 5 O 5 CH 2 ONa + HOCL → C 5 H 3 O 5 CH 2 OH + NaCl + H 2 O ,Sodium, ascorbate + Hypochlorous ,acid, → Dehydroascorbic ,acid, + ,Sodium chloride, + water Approximately 2.8 parts of ,sodium, ascorbate are required to neutralize 1 part chlorine.

In situ hypochlorous acid generation for the treatment of ...
In situ hypochlorous acid generation for the treatment of ...

1/8/1999, · A new treatment process was employed to ,treat wastewater, generated from a factory manufacturing syntan (synthetic tannin). In this treatment process, in-situ production of hypochlorous ,acid, was achieved by the use of an aqueous ,sodium chloride, solution for chlorine production.

Understanding Bleach Chlorine Salt and Acidified Sodium ...
Understanding Bleach Chlorine Salt and Acidified Sodium ...

Sodium, hypochlorite at a stronger concentration is widely used to sanitize drinking water and also ,treat wastewater, from sewage plants. That’s the good news. The bad news about “laundry bleach” is that it reacts with most nitrogen compounds to form volatile and dangerous (believed to be carcinogenic or cancer-causing) compounds called “chloramines.”

How to treat the wastewater in the process of producing ...
How to treat the wastewater in the process of producing ...

In the production of hydrochloric acid, the main, waste water, contains, sodium chloride., After treatment, it is rich in, sodium chloride,, and the mother liquor is recycled. The acid salt, water, is reused, and the filter cake and tap, water, meet the discharge standard.

Everything You Need to Know about Sodium Chlorite ...
Everything You Need to Know about Sodium Chlorite ...

Some consumer-based uses of ,sodium, chlorite are as follows -. It is used for the treatment of water and water purification. It is used as a surface cleaner for areas where food is prepared. It is used in many households as a drug used to ,treat, microbial infection in food, especially seafood. Industrial use -.

What is Cleaning in Place and How Does it Work?
What is Cleaning in Place and How Does it Work?

Cleaning in Place (CIP) has been around for approximately 50 years, and is commonly ,used, in hygiene critical industries, such Food, Beverage and Pharmaceutical, to clean a wide range of plant. CIP refers to the use of a mix of chemicals, heat and ,water, to clean machinery, vessels or ,pipe, work without dismantling plant. The process can be one shot, where everything goes to drain, or recovery ...

Removal of Acid Red and sodium chloride mixtures from ...
Removal of Acid Red and sodium chloride mixtures from ...

A spiral wound nanofiltration membrane was used to remove mixtures of ,sodium chloride, and ,Acid, Red 114 (AR) from aqueous solutions.

How to destroy Ferricyanide in Electroplating Wastewater
How to destroy Ferricyanide in Electroplating Wastewater

We next add 7.6 ml per gal of ,wastewater,, of a coagulant, as a 10% solution mixed into water, to the batch. We have found this product at Chemetall Oakite (Enprox 8412). Mix this for 15 min into the batch. Finally, adjust the pH to 10.6, or what is appropriate to the product next used.

US5346620A - Process for waste water treatment by removal ...
US5346620A - Process for waste water treatment by removal ...

The process is useful for, treating waste water, generated in the production of polyethyleneimine and cyclohexanone. The process includes the steps of removing sodium sulfate from, waste water, by the...

In situ hypochlorous acid generation for the treatment of ...
In situ hypochlorous acid generation for the treatment of ...

1/8/1999, · A new treatment process was employed to ,treat wastewater, generated from a factory manufacturing syntan (synthetic tannin). In this treatment process, in-situ production of hypochlorous ,acid, was achieved by the use of an aqueous ,sodium chloride, solution for chlorine production.

WO2002083573A2 - Method to treat soapy wastewater - …
WO2002083573A2 - Method to treat soapy wastewater - …

The treatment starts by injecting 0.00075 of aluminum chlorhydroxide polymers of the formula (Aln(OH)mCI3nm) at 50% V/N compound per liter of water and …

PHYSICAL AND CHEMICAL WASTEWATER TREATMENT METHODS
PHYSICAL AND CHEMICAL WASTEWATER TREATMENT METHODS

Physical ,Wastewater, Treatment Methods. 1.1. ... Neutralization may be used in order to ,treat acid, wastewaters containing metals, ... lead to water hardness. To soften the water, positively charged ,sodium, ions are introduced in the form of dissolved ,sodium chloride, salt, or brine. Hard calcium and magnesium ions exchange places with ,sodium, ...

What is an Ion Exchange System and How Does it Work ...
What is an Ion Exchange System and How Does it Work ...

19/10/2020, · When the ion exchange process is no longer functioning properly, the resins can be recharged with sulfuric acid, sodium chloride, sodium hydroxide, or hydrochloric acid. Keep in mind that the overall effectiveness of your ion exchange system when used to …

(PDF) Recovery of soluble chloride salts from the ...
(PDF) Recovery of soluble chloride salts from the ...

Wet pretreatment is widely employed as the most economic method to treat municipal solid waste incineration (MSWI) fly ash. Meanwhile, much wastewater containing high concentration of chlorides ...

What is an Ion Exchange System and How Does it Work ...
What is an Ion Exchange System and How Does it Work ...

20/10/2020, · When the ion exchange process is no longer functioning properly, the resins can be recharged with sulfuric ,acid,, ,sodium chloride,, ,sodium, hydroxide, or hydrochloric ,acid,. Keep in mind that the overall effectiveness of your ion exchange system when used to ,treat, water can be limited by a variety of issues.

What Is Brine Waste and How Can It Be Treated for Reuse ...
What Is Brine Waste and How Can It Be Treated for Reuse ...

19/4/2018, · Because of the high concentration of salt in brine, pretreatment is often used to help protect downstream filtration units and equipment. Another option for treating brine waste is, evaporation,. This can be done in an outdoor, evaporation, pond or with a technique called, vacuum evaporation.

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