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What kind of pipe is used for acid wastewater

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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What kind of pipe is used for acid wastewater
Wastewater Treatment by Electrocoagulation: A comparative ...
Wastewater Treatment by Electrocoagulation: A comparative ...

As shown in figures 2, ,3,, and 4, the voltage and current have a main important role in increasing the removal efficiency at the same pH. By using Al electrode as anode with constant pH = 7, time 60 min, COD removal efficiencies were 92.4, 94.6, 95.9, and 97.7% at voltages of ,3,, 6, 9, and 12V, respectively. By using ,Fe, electrode as anode under

Guidelines for wastewater from laboratory research and ...
Guidelines for wastewater from laboratory research and ...

3,. The substance is one of the following: -Inorganic chemicals: inorganic substances must be presented as hazardous waste. However, the following ioins in aqeuous solution may be poured down the drain in small quantities: Kations: + Na +, Mg. 2+, K , Ti(IV), Mn(IV) (obs ej Mn(VII)), ,Fe,. 2+, ,Fe,. ,3,+, Al. ,3,+ Anions: - Cl , Br--, I-, CO. ,3, 2-, ,NO,. ,3,-, PO. 4 ,3,-, SO. ,3, 2-, SO. 4 2-

USE OF ZERO-VALENT IRON FOR WASTEWATER TREATMENT
USE OF ZERO-VALENT IRON FOR WASTEWATER TREATMENT

with other ,wastewater treatment, technologies may be required. Batch kinetic studies show that the decolorization rate follows first order equation [45]. It was found that only small amount of dyes was adsorbed on the iron surface [45] and sorption data of dyes on the iron surfaces fitted with Langmuir isotherm [43]. N Na 2 SO ,3, OH N H ,Fe, 2+ OH

Study on preparation conditions of coal fly ash catalyst ...
Study on preparation conditions of coal fly ash catalyst ...

The precursor solution (Fe(NO 3) 3) with pH pre-adjusted by oxalate can produce a relatively good Fe 2O 3/granular MCFA catalyst and 12 h of impregnation is recommended. Calcining the impregnated granula r MCFA at 673 K for 2 h is the last necessary step in preparing Fe 2O 3/granular MCFA. The three MCFA catalysts could be reused at least 3 times, with a 57%

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