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

Neutralization of acid wastewater is generally used

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.

Neutralization of acid wastewater is generally used
CHROME WASTE WASTEREATMENT - Sensorex
CHROME WASTE WASTEREATMENT - Sensorex

chromium, with precipitation to ,chromium, hydroxide a harmless, non-toxic substance. Chrome Waste ,Treatment, Process Chromate waste rinse water is typically treated in 2 stages. Stage 1 changes ,hexavalent chromium, (Cr+6) to trivalent ,chromium, (Cr+3). Trivalent ,chromium, freely bonds to hydroxide in Stage 2 of the ,treatment, process.

Hexavalent chromium - Wikipedia
Hexavalent chromium - Wikipedia

There are mainly three types of methods to remediate ,hexavalent chromium, in ground water and drinking water: 1) reduction of toxicity, 2) removal technologies and 3) containment technologies. Reduction of toxicity ,of hexavalent chromium, involves methods using chemicals, microbes and plants.

JP4008723B2 - Hexavalent chromium treatment method ...
JP4008723B2 - Hexavalent chromium treatment method ...

本発明に係る6価クロムを含む対象物とは、メッキ廃水や電解加工廃水等の溶液状態でも、焼却灰や土壌等の固形物状態でも良い。. The object containing ,hexavalent chromium, according to the present invention may be in a solution state such as plating ,wastewater, or electrolytic processing ,wastewater,, or in a solid state such as incineration ash or soil.

Treatment of Hexavalent Chromium Contaminated Wastewater ...
Treatment of Hexavalent Chromium Contaminated Wastewater ...

Nguyen, L.H., Nguyen, T.M.P., Van, H.T. et al. ,Treatment of Hexavalent Chromium Contaminated Wastewater Using Activated Carbon, Derived from Coconut Shell Loaded by Silver Nanoparticles: Batch Experiment. Water Air Soil Pollut 230, 68 (2019). https://doi.org/10.1007/s11270-019-4119-8. Download citation. Received: 21 November 2018. Accepted: 11 February 2019

JP4008723B2 - Hexavalent chromium treatment method ...
JP4008723B2 - Hexavalent chromium treatment method ...

本発明に係る6価クロムを含む対象物とは、メッキ廃水や電解加工廃水等の溶液状態でも、焼却灰や土壌等の固形物状態でも良い。. The object containing ,hexavalent chromium, according to the present invention may be in a solution state such as plating ,wastewater, or electrolytic processing ,wastewater,, or in a solid state such as incineration ash or soil.

Reduction Monitoring in the Chromium Wastewater Treatment ...
Reduction Monitoring in the Chromium Wastewater Treatment ...

hexavalent chromium such as chromate and dichromate. The hexavalent chromium in this wastewater must be reduced before the water can be discharged. This requires a two-step process: hexavalent chromium (CR6) is reduced to trivalent chromium (CR 3); and CR is precipitated as chromium hydroxide. As the oxidation-reduction potential (ORP)

Wastewater Treatment Unit to Remove Hexavalent Chromium ...
Wastewater Treatment Unit to Remove Hexavalent Chromium ...

The principle of operation is as follows. Wastewater with hexavalent chromium goes into the mixing tank, where acid concentration is equalized and more acid is added. After that the wastewater goes into the AVS, simultaneously mixed with ferrous sulphate or sodium bisulfate. The flow meter adjusts the flow rate. After chromium recovery the waste water flows into the second AVS with lime milk, forming …

Trevi Environmental Solutions - Chromium reduction
Trevi Environmental Solutions - Chromium reduction

Hexavalent chromium can be found in chromate compounds (CrO 4 2-and Cr 2 O 7 2), is highly toxic and carcinogenic. Wastewater treatment techniques therefore aim to reduce the hexavalent chromium to trivalent chromium. The latter component can be removed by conventional physicochemical wastewater treatment. Principle and scheme. In acid medium, the chromate compounds / hexavalent chromium …

Removal of Hexavalent Chromium-Contaminated Water and ...
Removal of Hexavalent Chromium-Contaminated Water and ...

20/11/2008, · Xu, Y., Xiao, H., & Sun, S. (2005). Study on anaerobic ,treatment, of ,wastewater, containing ,hexavalent chromium,. Journal of Zhejiang University Science, 6(6), 574–579. Article CAS Google Scholar Yang, T. C., & Zall, R. R. (1984). Absorption of metals by natural polymers generated from seafood processing wastes.

Hexavalent Chromium Chromate Conversion Chromic Acid ...
Hexavalent Chromium Chromate Conversion Chromic Acid ...

Rinsewaters from hexavalent chromium conversion coating require treatment and the treatment residuals (ion exchange media or sludge) are regulated as RCRA hazardous waste (D007, F019). Evoqua’s wastewater ion exchange systems and capital equipment are used to remove the hazardous components, allowing the treated rinse water to either be recycled back to the rinse baths or …

Hexavalent chromium - Wikipedia
Hexavalent chromium - Wikipedia

There are mainly three types of methods to remediate ,hexavalent chromium, in ground water and drinking water: 1) reduction of toxicity, 2) removal technologies and 3) containment technologies. Reduction of toxicity ,of hexavalent chromium, involves methods using chemicals, microbes and plants.

Trevi Environmental Solutions - Chromium reduction
Trevi Environmental Solutions - Chromium reduction

Hexavalent chromium can be found in chromate compounds (CrO 4 2-and Cr 2 O 7 2), is highly toxic and carcinogenic. Wastewater treatment techniques therefore aim to reduce the hexavalent chromium to trivalent chromium. The latter component can be removed by conventional physicochemical wastewater treatment. Principle and scheme. In acid medium, the chromate compounds / hexavalent chromium …

Determination of Hexavalent Chromium (Cr(VI ...
Determination of Hexavalent Chromium (Cr(VI ...

The concentration of hexavalent chromium (Cr (VI)), a toxic environmental pollutant and carcinogen, was determined in samples collected from Nacogdoches Wastewater Treatment Plant (NWWTP) using ion chromatography and UV-visible spectrophotometry (IC, UV-Vis). On reaction with 1,5-diphenylcarbazide (DPC) Cr +6 forms a 1,5-diphenylcarbazide-Cr (VI) ...

Determination of Hexavalent Chromium (Cr(VI ...
Determination of Hexavalent Chromium (Cr(VI ...

The concentration of hexavalent chromium (Cr (VI)), a toxic environmental pollutant and carcinogen, was determined in samples collected from Nacogdoches Wastewater Treatment Plant (NWWTP) using ion chromatography and UV-visible spectrophotometry (IC, UV-Vis). On reaction with 1,5-diphenylcarbazide (DPC) Cr +6 forms a 1,5-diphenylcarbazide-Cr (VI) ...

Hexavalent Chromium Chromate Conversion Chromic Acid ...
Hexavalent Chromium Chromate Conversion Chromic Acid ...

Rinsewaters from hexavalent chromium conversion coating require treatment and the treatment residuals (ion exchange media or sludge) are regulated as RCRA hazardous waste (D007, F019). Evoqua’s wastewater ion exchange systems and capital equipment are used to remove the hazardous components, allowing the treated rinse water to either be recycled back to the rinse baths or …

Chat Online Inquiry Email

Business cooperation

+86 513525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City