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

Acid industrial wastewater from a factory

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.

Acid industrial wastewater from a factory
Ground Water Contamination with Fluoride and Potential ...
Ground Water Contamination with Fluoride and Potential ...

1/6/2012, · Use of electrodialysis plants in North Africa is employed in large scale water treatment of high fluoride brackish water for potable water supply . Electrodialysis is similar to Reverse Osmosis, except it uses an applied direct current potential instead of pressure, to separate ionic contaminants from water.

Design Manual: Removal of Fluoride from Drinking Water ...
Design Manual: Removal of Fluoride from Drinking Water ...

Both processes use a 1% (by weight) NaOH solution. The objective of regeneration is to remove as much ,fluoride, ions (and other co-contaminants) as possible from the media before returning the bed to the ,treatment, mode. ,Fluoride, ions lose their attraction (adsorptive force) and become repelled by the alumina when the pH rises above 10.5.

Electrodialysis apparatus waste water treatment method ...
Electrodialysis apparatus waste water treatment method ...

In this method, an acidic gas containing hydrogen fluoride is subjected to gas/liquid contact and decomposition absorption with an (aqueous alkaline) absorbing solution and a wet scrubber, and the resulting waste water is sent to an electrodialysis apparatus, having an anion-selective permeable membrane, for dialytic treatment of the waste water.

Removal of Fluoride from Drinking Water by Sorption Using ...
Removal of Fluoride from Drinking Water by Sorption Using ...

Exposure to ,fluoride, beyond the recommended level for longer duration causes both dental and skeletal fluorosis. Thus, the development of cost-effective, locally available, and environmentally benign adsorbents for ,fluoride, removal from contaminated water sources is absolutely required. In the present study, diatomaceous earth (diatomite) locally available in Ethiopia, modified by treating it ...

An Overview of Fluoride Toxicological Profile Pollution ...
An Overview of Fluoride Toxicological Profile Pollution ...

Fluoride, induce water pollution. Most water bodies found contaminated by excess watersoluble fluorides which gets originate via mineral, ore, rock and coal activities. Factory scrubbers and sewage ,treatment, effluents contain dissolved fluorides end up in water bodies like streams, lakes, ponds, wells and rivers.

A Limestone Reactor for Fluoride Removal from Wastewaters ...
A Limestone Reactor for Fluoride Removal from Wastewaters ...

30/6/2000, · A two-column limestone reactor has been designed to reduce ,fluoride, concentrations from wastewaters to below the maximum contaminant level (MCL limit) of 4 mg/L. The reactor functions by forcing calcite (CaCO3) to dissolve and fluorite (CaF2) to precipitate in the first column. The second column is not necessary to remove ,fluoride, but is used to precipitate the calcite dissolved in the first ...

Ion Exchange - Wastewater Treatment - Climate Policy Watcher
Ion Exchange - Wastewater Treatment - Climate Policy Watcher

11/4/2021, · 2. Switch to a waste-,containing, solution passing through the column at the same flow rate as deionized water. 3. Measure the initial volume of solution to be treated. 4. Start the ,treatment, cycle and develop the breakthrough curve until the ,ion, concentration reaches the maximum effluent limit. 5.

Hazardous waste treatment technologies - Wang - 2019 ...
Hazardous waste treatment technologies - Wang - 2019 ...

Under neutral or ,acidic, pH conditions and current density of 0.1 A, ,fluoride, was removed in 6 min, while nitrate was eliminated after 18 min. Gally et al. reported that ,electrodialysis treatment, of tertiary ,wastewater treatment, effluent reduced the electrical conductivity upon the removal of Cl −, Ca 2+, and Mg 2+ ions, without significant membrane fouling.

Hazardous waste treatment technologies - Wang - 2019 ...
Hazardous waste treatment technologies - Wang - 2019 ...

Under neutral or ,acidic, pH conditions and current density of 0.1 A, ,fluoride, was removed in 6 min, while nitrate was eliminated after 18 min. Gally et al. reported that ,electrodialysis treatment, of tertiary ,wastewater treatment, effluent reduced the electrical conductivity upon the removal of Cl −, Ca 2+, and Mg 2+ ions, without significant membrane fouling.

Electrochemical technologies for wastewater treatment and ...
Electrochemical technologies for wastewater treatment and ...

EC or ECF processes are now used widely in the treatment of many types of wastewaters including dye and textile wastewater, 373–377 refractory oily wastewater, 378–380 municipal wastewater, 381–385 manufacturing wastewater, 386–388 and wastewaters with phenol, 389 toxic metals 390–393 and inorganic metals. 394–398 Bench and pilot-scale research studies on using EC and ECF technologies …

A Limestone Reactor for Fluoride Removal from Wastewaters ...
A Limestone Reactor for Fluoride Removal from Wastewaters ...

30/6/2000, · A two-column limestone reactor has been designed to reduce ,fluoride, concentrations from wastewaters to below the maximum contaminant level (MCL limit) of 4 mg/L. The reactor functions by forcing calcite (CaCO3) to dissolve and fluorite (CaF2) to precipitate in the first column. The second column is not necessary to remove ,fluoride, but is used to precipitate the calcite dissolved in the first ...

Study about Doping Ion La3+ onto Surface of Pyrolusite Ore ...
Study about Doping Ion La3+ onto Surface of Pyrolusite Ore ...

In order to study adsorption dynamics, phosphate solutions of 30, 50, and 100 mg/L and ,fluoride, solutions of 10, 15, and 20 mg/L concentrations were investigated at the initial pH value of 6.0. 100 mL of both phosphate and ,fluoride containing, solution was stirred with definite amount of adsorbent for different time durations ranging from 60 to 300 min at pH of 6.0.

Study about Doping Ion La3+ onto Surface of Pyrolusite Ore ...
Study about Doping Ion La3+ onto Surface of Pyrolusite Ore ...

In order to study adsorption dynamics, phosphate solutions of 30, 50, and 100 mg/L and ,fluoride, solutions of 10, 15, and 20 mg/L concentrations were investigated at the initial pH value of 6.0. 100 mL of both phosphate and ,fluoride containing, solution was stirred with definite amount of adsorbent for different time durations ranging from 60 to 300 min at pH of 6.0.

Removal of boron fluoride and nitrate by electrodialysis ...
Removal of boron fluoride and nitrate by electrodialysis ...

34 Membrane processes such as ,electrodialysis, (ED) are increasingly being utilised in water ,treatment, 35 to remove dissolved contaminants. A wide range of inorganic trace contaminants, including ,fluoride, (F-) and nitrate (NO 3 36 -), can be found in surface, brackish and groundwater. The occurrence and fate

Lowering Cost and Waste in Flue Gas Desulfurization ...
Lowering Cost and Waste in Flue Gas Desulfurization ...

1/3/2017, · ,Flue gas desulfurization, (FGD) ,wastewater, is processed first in the ,electrodialysis, unit, which produces separate sodium sulfate (Na 2 SO 4) and calcium chloride (CaCl 2) streams, and then through ...

Removal of Fluoride from Geothermal Water by ...
Removal of Fluoride from Geothermal Water by ...

Abstract Removal of ,fluoride, from geothermal water ,by electrodialysis, (ED) was studied. ED operation was performed according to two methods. In the first method, before the ED operation, the pH of geothermal waters was adjusted to 7−7.5 by the addition of the HCl solution to prevent the precipitation of divalent salts in the concentrate compartment.

Chat Online Inquiry Email

Business cooperation

+86 513525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City