Welcome to the company ! we have many years of professional experience !
rsdgj@pyzyrsd.com +86 513525609655

The pH value of biological treatment of acid wastewater increases

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.

Certificate of Honor

Get in touch with us

We will confidentially process your data and will not pass it on to a third party.

The pH value of biological treatment of acid wastewater increases
Process for Desalting Glycerol Solutions and Recovery of ...
Process for Desalting Glycerol Solutions and Recovery of ...

An example of ,neutralization, is illustrated below. A fatty ,acid, soap is converted from a ,sodium salt, (the soap) to a fatty ,acid, by the following reaction (Scheme 1) with hydrochloric ,acid, to produce ,salt, and a free fatty ,acid, which is insoluble or poorly soluble in a polar solvent. ##STR00001##

FAD: Journals - UNF
FAD: Journals - UNF

To measure the absorbance change, a three-channel manifold with a spectrophotometric detector was constructed, i.e., a carrier stream of a mixed solvent (toluene 52%/H2O 1%/2-propanol 47% v/v), a stream of perchloric ,acid, and a stream of tetrabutylammonium ,salt, of trifluoroacetic ,acid, solution containing an indicator (m-cresol purple).

Catalog of papers | CEST2019 - CEST2019 | CEST2019
Catalog of papers | CEST2019 - CEST2019 | CEST2019

Recovery of phosphorus and nitrogen from municipal and other types of ,wastewater, may be achieved through the direct crystallization of struvite (magnesium ammonium phosphate hexahydrate, Mg•NH4•PO4•6H2O). ,Wastewater, deficiency in magnesium makes it necessary for the external addition of magnesium to make up for the supersaturation needed.

CPCB - Guide for Water & Wastewater Analysis by Umesh ...
CPCB - Guide for Water & Wastewater Analysis by Umesh ...

Hydrochloric ,acid,: HCl conc. Standard ,sodium, thiosulphate (0.025N): Dissolve 6.205 g Na 2 S 2 O 3 .5H 2 O in distilled water and dilute to 1000 mL. Starch solution: Dissolve 2 g laboratory grade ...

Chemical Papers
Chemical Papers

6-acylamino nicotinic ,acid,-based hydrogelators applicable in phase selective gelation, reproducible mat formation and toxic dye removal: 4267 – 4282: Siddhartha Das and Sumita Roy: Vol. 74, 12: Treatment of real artificial leather manufacturing ,wastewater, containing Dimethylamine (DMA) by photocatalytic method: 4203 – 4212

yoalitorres | Chem and society
yoalitorres | Chem and society

A soluble base is also called an ,alkali,. A reaction between an ,acid, and a base is called ,neutralization, and this ,neutralization, results in production of water and a ,salt,. Volatile liquids (acids) when mixed with specific substances turn into salts. These substances form a …

Catalog of papers | CEST2019 - CEST2019 | CEST2019
Catalog of papers | CEST2019 - CEST2019 | CEST2019

Recovery of phosphorus and nitrogen from municipal and other types of ,wastewater, may be achieved through the direct crystallization of struvite (magnesium ammonium phosphate hexahydrate, Mg•NH4•PO4•6H2O). ,Wastewater, deficiency in magnesium makes it necessary for the external addition of magnesium to make up for the supersaturation needed.

Green Chemistry Program Nomination Table | US EPA
Green Chemistry Program Nomination Table | US EPA

This table contains information on each unique technology nominated for the Green Chemistry Challenge from 1996 through 2019. Although EPA has received 1,766 nominations during this period, only 912 unique technologies are represented here because sponsors …

presentation2-modefied-140406104819-phpapp01.ppt ...
presentation2-modefied-140406104819-phpapp01.ppt ...

The most appropriate treatment for carbon dioxide may be aeration, addition of an ,alkali,, or a combination of the two CO2 gas dissolves easily in water, resulting in carbonic ,acid,: H2O + CO2 <===> H2CO3 CO2 is neutralized through the addition of an ,alkali, (basic, ionic ,salt,), such as lime (Ca(OH)2) or soda ash (Na2CO3).

presentation2-modefied-140406104819-phpapp01.ppt ...
presentation2-modefied-140406104819-phpapp01.ppt ...

The most appropriate treatment for carbon dioxide may be aeration, addition of an ,alkali,, or a combination of the two CO2 gas dissolves easily in water, resulting in carbonic ,acid,: H2O + CO2 <===> H2CO3 CO2 is neutralized through the addition of an ,alkali, (basic, ionic ,salt,), such as lime (Ca(OH)2) or soda ash (Na2CO3).

Water Technology Articles – Page 2 – Water Technology Report
Water Technology Articles – Page 2 – Water Technology Report

Sodium, sulfate, when redissolved, forms two ,sodium, ions (Na +) and one sulfate ,acid, radical (SO 4-2). All inorganic acids are combinations of hydrogen ions and a neutral ,salt,. Nitric ,acid, (HNO 3), hydrochloric ,acid, (HCl) and sulfuric ,acid, (H 2 SO 4) are examples. pH. Water dissociates or …

Polyacrylic acid compositions for textile processing ...
Polyacrylic acid compositions for textile processing ...

Methacrylic ,acid, 12.5% Acrylic ,Acid, 12.5% Xylene sulfonic ,acid, 8.0% ,Sodium, xylene sulfonate 17.5% Ammonium persulfate 3.0% Isopropyl alcohol 4.5% Water 21.5% ,Sodium, dodecyl benzene sulfonate 20.5% 100.0% Dilution & ,Neutralization, Reaction Product 62.5% ,Sodium, xylene sulfonate 13.5% Water 17.0% NaOH 50% 7.0% 100.0%

Dissolved and colloidal substances (DCS) and the charge ...
Dissolved and colloidal substances (DCS) and the charge ...

Since peracetic ,acid, is a much stronger oxidant than hydrogen peroxide, its formation in the peroxide bleaching process will lead to more oxidation reactions to form more carboxylic groups, which contribute to the increase in the cationic demand. Addition of ,calcium, may also decrease the release of pectic acids (Saarimaa and Pranovich 2007).

Biodiesel Education
Biodiesel Education

Biodiesel Education Program at the University of Idaho. If you are looking for any biodiesel related information, this website provides you with an unbiased information through peer-reviewed publications, videos, technical notes, and thousands to literature organized with the topics you are looking for. This should be the first (and probably the last) page you will need to get information ...

CPCB - Guide for Water & Wastewater Analysis by Umesh ...
CPCB - Guide for Water & Wastewater Analysis by Umesh ...

Hydrochloric ,acid,: HCl conc. Standard ,sodium, thiosulphate (0.025N): Dissolve 6.205 g Na 2 S 2 O 3 .5H 2 O in distilled water and dilute to 1000 mL. Starch solution: Dissolve 2 g laboratory grade ...

Chat Online Inquiry Email

Business cooperation

+86 513525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City