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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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Waste Container
Facile Preparation of Tannic Acid–Poly(vinyl alcohol ...
Facile Preparation of Tannic Acid–Poly(vinyl alcohol ...

Agarwal et al. studied PVA to remove, bromothymol, blue and MB from wastewater. (17) Tannic acid (TA) is one of the natural organic matter because a complex compound of polyphenol contains a number of o -dihydroxy and trihydroxy aromatic ring structures. This structure has given it …

POLYVINYL ALCOHOL (PVA)
POLYVINYL ALCOHOL (PVA)

POLYVINYL ALCOHOL (PVA) Chemical and Technical Assessment (CTA) ... been suggested for measuring Polyvinyl alcohol concentration in ,wastewater, in a concentration range of ... The green complex formed by reaction of polyvinyl alcohol with boric ,acid, has been used to detect small amounts in polyvinyl chloride resins.

Quick method used to determine TAC and fatty volatile acid ...
Quick method used to determine TAC and fatty volatile acid ...

Measure 25 mL of ,sludge, as precisely as possible. Centrifuge this ,sludge, once at 5,000 rpm for 10 minutes. Collect the supernatant liquid in a 400 mL beaker. Resuspend the ,sludge, pellet with 50 mL of distilled water, taking care not to lose any of the solids.

Capturing Cd2+ ions from wastewater using PVA/α-MnO2–oleic ...
Capturing Cd2+ ions from wastewater using PVA/α-MnO2–oleic ...

Capturing Cd 2+ ions from, wastewater, using PVA/α-MnO 2 –oleic acid nanocomposites S. Mallakpour and F. Motirasoul, New J. Chem. , 2018, 42 , 4297 DOI: 10.1039/C8NJ00304A

Sludge Management Processing Treatment and Disposal
Sludge Management Processing Treatment and Disposal

in conserving nutrients, and utilizing soil ,conditioning, proper-ties and other recoverable qualities of sewage ,sludge,. Thus, land application for soil ,conditioning, and fertilization is the primary beneficial use of biosolids. Biosolids applications to agricultural lands utilize recyclable components of ,wastewater, in the production of crops ...

(PDF) Degradation of PVA (polyvinyl alcohol) in wastewater ...
(PDF) Degradation of PVA (polyvinyl alcohol) in wastewater ...

Polyvinyl alcohol (PVA), is, a typical refractory organic pollutant., It has received special attention due to its low biodegradability and the large amount of PVA-containing wastewater discharged...

Industrial waste water treatment - SlideShare
Industrial waste water treatment - SlideShare

The ,sludge, resulting from ,wastewater, treatment operations and processes is usually in the form of a liquid or semisolid liquid that typically contains from 0.25 to 12 percent solids by weight, depending on the operations and processes used. ,Sludge, is by farther largest in volume, and its processing and disposal is perhaps the most complex problem facing the engineer in the filed of ,wastewater, …

Challenges of Drying Sticky Wastewater Sludge - Chemical ...
Challenges of Drying Sticky Wastewater Sludge - Chemical ...

The ,Acid, Storage Cabinet ... in turn, in increased volumes of waste activated ,sludge,. In a recent review paper on the application of ,wastewater,-,sludge, drying, some data are presented on the quantities of ... The beneficial effect of PACl ,conditioning, of waste ,sludge, is explained by the bound hydration water associated with the super ...

KR100783754B1 - The process & equipments pva wastewater ...
KR100783754B1 - The process & equipments pva wastewater ...

The configuration of the present invention is a treatment method for treating, wastewater, containing a high concentration of, PVA, using the salting method and activated sludge method, the step of...

Water Conditioning (Water and Wastewater) Applications
Water Conditioning (Water and Wastewater) Applications

Results for water ,conditioning, from leading brands for water and ,wastewater,. Compare and contact a supplier near you

WASTEWATER TECHNOLOGY
WASTEWATER TECHNOLOGY

SLUDGE CONDITIONING, POLYLINE polymer preparation station In many ,wastewater, cleaning processes, sewage ,sludge, is created and its disposal and re-use is the responsibility of the plant operator. The smaller the volume of ,sludge, and the higher the amount of dry sub-stance, the more effectively recycling and disposal can be carried out. In order ...

The reuse of wastewater in making PVA sponge - ScienceDirect
The reuse of wastewater in making PVA sponge - ScienceDirect

1/8/2019, · The wastewater from conventional manufacturing processes of, superabsorbent poly (vinyl alcohol) (PVA) sponge contain,s high COD (chemical oxygen demand). To minimize environmental pollution and possibly reuse certain chemical ingredients in the wastewater, we have developed a process that reuses the recycled wastewater in this work.

peracetic acid - suezwaterhandbook.com
peracetic acid - suezwaterhandbook.com

It has been reported that amounts of 2 to 4 mg · L –1 eliminate in excess of 90% of total coliforms from municipal ,wastewater,. Peracetic ,acid, is effective to inactivate salmonellae in excess activated ,sludge, at amounts greater than 250 mg · L –1 with contact …

CN102173493A - Process for removing polyvinyl alcohol in ...
CN102173493A - Process for removing polyvinyl alcohol in ...

The invention discloses a process for removing polyvinyl alcohol in, waste water,, which comprises the following steps of: 1) adding formaldehyde and hydrochloric acid into the, waste water, containing...

Residuals Biosolids and Sludge Processing Practice Questions
Residuals Biosolids and Sludge Processing Practice Questions

b. withdraw large quantities of ,sludge, and attempt to reseed with fresh primary ,sludge, c. add a source of alkalinity such as lime or soda ash d. decrease the temperature into the cryophilic range . 3. The volatile ,acid, to alkalinity ratio of a properly operating anaerobic digester is . a. 0.1 part volatile ,acid, to one part alkalinity b.

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