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Average flow of acid wastewater in a refinery

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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Average flow of acid wastewater in a refinery
US6645385B2 - System and method for removal of fluoride ...
US6645385B2 - System and method for removal of fluoride ...

The system comprises a reaction tank for processing said ,wastewater, by adding calcium salts, a filtration tank for removing the precipitated ,fluoride, formed in the reaction tank, a single ,fluoride, electrode disposed at the reaction tank for measuring a ,concentration, of ,fluoride, in the influent ,wastewater, and providing an output signal, and a programmable controller for controlling addition of …

Precipitation Methods Using Calcium-Containing Ores for ...
Precipitation Methods Using Calcium-Containing Ores for ...

The fluoride concentration in industrial wastewater generally reaches up to hundreds or even thousands of milligrams of per liter and exceeds drastically the WHO (World Health Organization) guideline value of 1.5 mg/L in drinking water [15,16].

Electrochemical decomposition of fluorinated wetting ...
Electrochemical decomposition of fluorinated wetting ...

The ,concentration, of none of the other reference target PFAS increased. ,Fluoride, could not be detected in the treated ,acidic, electrolyte, which is expected since the HF is volatile at low pH. The hexchrome-containing ,wastewater, has a pH between 1.0 and 1.2 and, in that ,acidic, solution, ,fluoride, is not stable.

Fluoride contamination in estuary water villages located ...
Fluoride contamination in estuary water villages located ...

Presence of ,high concentration, of ,fluoride, in drinking water causes dental and skeletal fluorosis in humans in ... hydrogen ,fluoride, (HF) in an ,acidic, stomach and out of this upto 40 % is absorbed by stomach or intestine [3]. ... ,fluoride, chemicals [25]. The ,wastewater, from such industries contains ,fluoride, ranging from several hundred to

Behavior Analysis of pH Dissolved Aluminum and Fluoride ...
Behavior Analysis of pH Dissolved Aluminum and Fluoride ...

containing ,high concentration, of ,fluoride, compared with that of the AMD at Station M1 of the abandoned Nishiazuma Mine (See Table 1). ,Fluoride, was reported to be emitted as hydrogen ,fluoride, from volcanoes and then removed from the atmosphere by the deposition on land or surface water [18]. Consequently, the ,high, concentrations of ,fluoride, in Ara

Electrochemical decomposition of fluorinated wetting ...
Electrochemical decomposition of fluorinated wetting ...

The ,concentration, of none of the other reference target PFAS increased. ,Fluoride, could not be detected in the treated ,acidic, electrolyte, which is expected since the HF is volatile at low pH. The hexchrome-containing ,wastewater, has a pH between 1.0 and 1.2 and, in that ,acidic, solution, ,fluoride, is not stable.

Removal of Chloride Ions from Strongly Acidic Wastewater ...
Removal of Chloride Ions from Strongly Acidic Wastewater ...

Strongly acidic wastewater, which is usually generated from nonferrous metal smelting industries, has the ability to be recycled as sulfuric acid. Before this wastewater is recycled, the removal of chloride ions is necessary to improve the quality of the recycled sulfuric acid.

Treatment of Effluents of Fertilizer Industry ...
Treatment of Effluents of Fertilizer Industry ...

The effluents from phosphoric acid plants contain varying ,concentration, of ,fluoride, which pollutes the water course seriously if not removed prior to its discharge. Flouride is now recovered from the flouride bearing effluents by treating them with lime to recover calcium flouride with aluminium salts to recover aluminium flouride and with sodium salts to recover sodium flouride.

NEUTRALISING ACID WATER
NEUTRALISING ACID WATER

another phosphate ,wastewater,, this time with initial pH of 2.2, a ,fluoride concentration, of about 3000 mg/l, and phosphate ,concentration, of about 5000 mg/l. Jar tests were completed simulating the first stage neutralisation with a pH of about 5.3. The required lime dosage and ,fluoride concentration, …

(PDF) Treatment of high fluoride concentration water by ...
(PDF) Treatment of high fluoride concentration water by ...

Although the theoretical solubility of CaF 2 is 17 mg/L at 25 1C in water (Butler, 1964;Toyoda and Taira, 2000), CaF 2 precipitation can only reduce the fluoride concentration to 10-20 mg/L in practice (Reardon and Wang, 2000). Depending on the discharge standards (p10 mg/L) for industrial wastewater, a subsequent step may be necessary.

Fluoride contamination in estuary water villages located ...
Fluoride contamination in estuary water villages located ...

Presence of ,high concentration, of ,fluoride, in drinking water causes dental and skeletal fluorosis in humans in ... hydrogen ,fluoride, (HF) in an ,acidic, stomach and out of this upto 40 % is absorbed by stomach or intestine [3]. ... ,fluoride, chemicals [25]. The ,wastewater, from such industries contains ,fluoride, ranging from several hundred to

15 types of industrial wastewater treatment processes ...
15 types of industrial wastewater treatment processes ...

Due to the large differences in oil ,concentration, in ,wastewater, discharged from different ,industrial, sectors, such as ,wastewater, generated during the refining process, the oil content is about 150 ~ 1000mg / L, the tar content in coking ,wastewater, is about 500 ~ 800mg / L, and the ,wastewater, from the gas generation station is discharged into the ,wastewater,.

(PDF) Treatment of high fluoride concentration water by ...
(PDF) Treatment of high fluoride concentration water by ...

Although the theoretical solubility of CaF 2 is 17 mg/L at 25 1C in water (Butler, 1964;Toyoda and Taira, 2000), CaF 2 precipitation can only reduce the fluoride concentration to 10-20 mg/L in practice (Reardon and Wang, 2000). Depending on the discharge standards (p10 mg/L) for industrial wastewater, a subsequent step may be necessary.

Behavior Analysis of pH Dissolved Aluminum and Fluoride ...
Behavior Analysis of pH Dissolved Aluminum and Fluoride ...

containing ,high concentration, of ,fluoride, compared with that of the AMD at Station M1 of the abandoned Nishiazuma Mine (See Table 1). ,Fluoride, was reported to be emitted as hydrogen ,fluoride, from volcanoes and then removed from the atmosphere by the deposition on land or surface water [18]. Consequently, the ,high, concentrations of ,fluoride, in Ara

Heavy Metals Removal Industrial Wastewater Solutions
Heavy Metals Removal Industrial Wastewater Solutions

Heavy Metals Removal Heavy Metals ,Wastewater, Treatment System (Chrome Removal) Chromium is present in the wastewaters of a number of industries, including: stainless steel manufacturing, protective coatings on metal, magnetic tapes, chrome plating, tanneries, textile dyes production, pigments and paint production, production of cement, paper, rubber, etc. Chromium is typically precipitated in ...

Our Company - Current Water Technologies Inc.
Our Company - Current Water Technologies Inc.

Our patented ESD (deionization) and our patented AmmEL (ammonia), and NitrEL (nitrate) technologies represent effective alternatives to biological, ion exchange, and reverse osmosis systems. AmdEL (acid mine drainage) is dedicated to the prevention of ,acidic, leachate production from sulphide mine waste. For ,high, value metals recovery, Current Water ...

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