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

Acidity of wastewater containing Cr2O7

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.

Acidity of wastewater containing Cr2O7
The recovery of sulphuric acid from the waste anodic ...
The recovery of sulphuric acid from the waste anodic ...

30/9/2009, · The diffusion dialysis has been employed in this study for treatment of ,acid wastewater discharged, from anodic aluminum oxidation process. The results from batch experiments indicated that agitation could reduce concentration polarization phenomenon and CuSO 4 could enhance proton permeability to some extent.

Efficient hydrolysis and ethanol production from rice ...
Efficient hydrolysis and ethanol production from rice ...

replace ,sulfuric acid, in pretreatment. Scordia et al.21 showed that oxalic ,acid, pretreatment can effectively remove hemi-cellulose from giant reed, improving the accessibility of the solid residue for enzymatic hydrolysis and simultaneous sacchari …

Acid Mine Drainage: A Reusable Water Resource | Water Tech ...
Acid Mine Drainage: A Reusable Water Resource | Water Tech ...

According to a 2013 Duke University-led study, much of the naturally occurring radioactivity (radium and barium) in fracking ,wastewater, might be removed by blending it with ,wastewater, from AMD. Blending them can bind some fracking contaminants into solids that can then be removed before the water is ,discharged, back into waterways.

Industrial wastewater treatment - Wikipedia
Industrial wastewater treatment - Wikipedia

The two acids commonly used are hydrochloric ,acid, and ,sulfuric acid,. Wastewaters include acidic rinse waters together with waste ,acid,. Although many plants operate ,acid, recovery plants (particularly those using hydrochloric ,acid,), where the mineral ,acid, is boiled away from the iron salts, there remains a large volume of highly ,acid, ferrous sulfate or ferrous chloride to be disposed of.

Ammonia problems in Wastewater Treatment plants- Midnight ...
Ammonia problems in Wastewater Treatment plants- Midnight ...

paint thinner, camp stove fuel); liquid corrosives (e.g. ,sulfuric acid,, muriatic ,acid,, sodium hydroxide solutions), a nd mixtures with residual ephedrine, methamphetamine, iodine or red phosphorous. Cyanide is a byproduct of meth production and can significantly impact a ,wastewater plant, if in high enough concentrations.

Lucite - Belle - Sulphuric Acid
Lucite - Belle - Sulphuric Acid

News. June 24, 2014 - A chemical leak was reported Tuesday night at the DuPont ,plant, in Belle, but it was contained to the ,plant, and posed no danger to the public, according to Metro 911 dispatchers. About three pounds of sulfur trioxide was released from the ,plant,. The leak was reported about 8:20 p.m. Tuesday.

Recovery of sulfuric acid aqueous solution from copper ...
Recovery of sulfuric acid aqueous solution from copper ...

1/10/2018, · The use of NF membrane systems to recover sulfuric acid aqueous solutions from sulfuric acid wastewater produced during, copper smelting, reduces the amount of discharged pollutants. However, to the best of our knowledge, no research has been performed to determine which type of membrane is most suitable for sulfuric acid solution recovery from copper-refining …

Winkler titration - Wikipedia
Winkler titration - Wikipedia

In the next step, a strong ,acid, (either hydrochloric ,acid, or ,sulfuric acid,) is added to acidify the solution. The brown precipitate then converts the iodide ion (I −) to iodine. The amount of dissolved oxygen is directly proportional to the ,titration, of iodine with a thiosulfate solution.

Resource utilization of pickling wastewater (waste acid)
Resource utilization of pickling wastewater (waste acid)

The ,acid, pickling ,wastewater, (waste ,acid,) produced by steel rolling, metal surface treatment and heat treatment industry is mainly hydrochloric ,acid wastewater, and ,sulfuric acid wastewater,. The impurities in the waste ,acid, are mainly Fe2 +, Fe3 +, and a small amount of zinc, copper and other heavy metal ions.

BARIUM CARBONATE TREATMENT OF SULFURIC ACID …
BARIUM CARBONATE TREATMENT OF SULFURIC ACID …

Large quantities of the ,sulfuric acid, used in any manufacturing process usually end up in the waste effluent ,discharged, from that pro-cess. For the integrated stee 1 mill example mentioned above, waste ,sulfuric acid, loads from the pickling operation consist of 12,350 lbs per day in the strong waste liquor and 2,180 lbs per day in the rinse-

The Study of the Technology to Remove Fluorine from the ...
The Study of the Technology to Remove Fluorine from the ...

The study puts forward the clean production process of"Neutralized with carbide mud residue-Coagulated together with Coagulant XN-1——Neutralized with waste hydrochloric ,acid,"to remove fluorine from the ,wastewater discharged from sulfuric acid plant,. Through lab-based experiments, the study has investigated the influence to fluorine-removal efficiency caused by …

Resource utilization of pickling wastewater (waste acid)
Resource utilization of pickling wastewater (waste acid)

The ,acid, pickling ,wastewater, (waste ,acid,) produced by steel rolling, metal surface treatment and heat treatment industry is mainly hydrochloric ,acid wastewater, and ,sulfuric acid wastewater,. The impurities in the waste ,acid, are mainly Fe2 +, Fe3 +, and a small amount of zinc, copper and other heavy metal ions.

Industrial wastewater treatment - Wikipedia
Industrial wastewater treatment - Wikipedia

The two acids commonly used are hydrochloric ,acid, and ,sulfuric acid,. Wastewaters include acidic rinse waters together with waste ,acid,. Although many plants operate ,acid, recovery plants (particularly those using hydrochloric ,acid,), where the mineral ,acid, is boiled away from the iron salts, there remains a large volume of highly ,acid, ferrous sulfate or ferrous chloride to be …

The recovery of sulphuric acid from the waste anodic ...
The recovery of sulphuric acid from the waste anodic ...

30/9/2009, · The diffusion dialysis has been employed in this study for treatment of ,acid wastewater discharged, from anodic aluminum oxidation process. The results from batch experiments indicated that agitation could reduce concentration polarization phenomenon and CuSO 4 could enhance proton permeability to some extent.

Influence of surface modification by sulfuric acid on ...
Influence of surface modification by sulfuric acid on ...

Coking coal, the raw material of a coke plant, was applied to the adsorption of coking wastewater. In this study, coking coal was directly treated with sulfuric acid to improve its surface properties and adsorption ability. Acid treatment was carried out at various …

Perchloric acid | HClO4 - PubChem
Perchloric acid | HClO4 - PubChem

PERCHLORIC ACID,, WITH NOT MORE THAN 50% ,ACID, is a solution of a strong oxidizing ,acid,. May react vigorously or deflagrate when mixed with oxidizable material [Merck]. This includes (but is not limited to) alcohols, amines, boranes, dicyanogen , hydrazines, hydrocarbons, hydrogen , nitroalkanes, powdered metals, silanes, or thiols [Bretherick 1979. p.174].

Formic acid | HCOOH - PubChem
Formic acid | HCOOH - PubChem

Formic acid, is the simplest carboxylic ,acid,, containing a single carbon. Occurs naturally in various sources including the venom of bee and ant stings, and is a useful organic synthetic reagent. Principally used as a preservative and antibacterial agent in livestock feed.

GAS PROCESSING: WASTEWATER TREATMENT AND DISPOSAL:
GAS PROCESSING: WASTEWATER TREATMENT AND DISPOSAL:

Cooling tower blowdown is often the major source of ,plant wastewater,. Discharge limitations may apply to concentrations of total dissolved solids, specific ions such as sulfate, suspended solids, corrosion inhibitors such as hexavalent chromium or phosphates, biological control agents including chlorine, and various miscellaneous chemicals.

Standard Methods for the Examination of Water and ...
Standard Methods for the Examination of Water and ...

Standard Methods for the Examination of Water and Wastewater, 22nd Edition TABLE OF CONTENTS Part 1000 INTRODUCTION ... B. ,Titration, Method 2320 ALKALINITY A. Introduction ... F. Nitric ,Acid,-Hydrochloric ,Acid, Digestion G. Nitric ,Acid,-,Sulfuric Acid, Digestion

Lucite - Belle - Sulphuric Acid
Lucite - Belle - Sulphuric Acid

News. June 24, 2014 - A chemical leak was reported Tuesday night at the DuPont ,plant, in Belle, but it was contained to the ,plant, and posed no danger to the public, according to Metro 911 dispatchers. About three pounds of sulfur trioxide was released from the ,plant,. The leak was reported about 8:20 p.m. Tuesday.

Chat Online Inquiry Email

Business cooperation

+86 513525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City