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The patent No. of acid wastewater treatment with phosphogypsum residue

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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The patent No. of acid wastewater treatment with phosphogypsum residue
Development of Green Digestion Methods of Soils for the ...
Development of Green Digestion Methods of Soils for the ...

worst ,recovery, of ,arsenic, in soil samples. ,Arsenic, has several health risks associated with chronic exposure 10so there is more importance to find methods that will yield consistent results. The EPA methods given would work, but only with a maximum ,recovery, …

Central Pollution Control Board - CPCB ENVIS
Central Pollution Control Board - CPCB ENVIS

transported for reuse/,recovery, The technologies adopted for effluent are (i) air stripping, (ii) stream stripping with ,recovery, of ammonia for ammonia bearing effluents from ammonia and urea plants, and (iii) hydrolyser stripper for urea bearing effluent. ,High,-pressure hydrolyser strippers with ,recovery, of ammonia and condensate.

Wastewater Treatment through Low Cost Adsorption ...
Wastewater Treatment through Low Cost Adsorption ...

7/4/2016, · This treatment consists of immersing the pine bark into diluted ,acid, media at slightly ,high, temperatures such as 50°C–70°C [34–36] before performing the adsorption tests. The acidic solution needs to be diluted to secure the integrity of the sorbent during the pre-treatment.

Arsenic Removal From Water | Fluence
Arsenic Removal From Water | Fluence

The adsorption of ,arsenic, on media coated with iron hydroxide is very effective because of the affinity between the two elements. In addition, low operating costs make this ,process, the best alternative when treating ,high arsenic, concentration for the production of both drinking water and mineral water.

Development of Green Digestion Methods of Soils for the ...
Development of Green Digestion Methods of Soils for the ...

worst ,recovery, of ,arsenic, in soil samples. ,Arsenic, has several health risks associated with chronic exposure 10so there is more importance to find methods that will yield consistent results. The EPA methods given would work, but only with a maximum ,recovery, …

Minerals | Free Full-Text | Pilot-Scale Removal of Arsenic ...
Minerals | Free Full-Text | Pilot-Scale Removal of Arsenic ...

This study was conducted to assess the removal of ,arsenic, (As) and ,heavy metals from mining wastewater, by the combination of adsorption, using modified iron-ore drainage sludge, and horizontal-subsurface-flow constructed wetland with common reed (Phragmites australis).

Arsenic Removal System - Sewage Treatment - Reverse ...
Arsenic Removal System - Sewage Treatment - Reverse ...

Regeneration is a slow and water-intensive process. Typically, columns are rinsed with 1-2 bed volumes to displace the regenerant. This is followed by a fast rinse for about 10 minutes at design flow. The used regeneration brine, containing arsenic, is a hazardous waste and must be disposed of accordingly.

Study on Treatment of Smelting Contaminated Acid by ...
Study on Treatment of Smelting Contaminated Acid by ...

The results show ,arsenic,, fluorine and chloride have good removal rates from ,contaminated acid by evaporation condensing process,. Temperature at 130°C, enrichment multiple in 6~7, the removal rate of ,arsenic,, fluorine and chlorine reached 62%, 88%, 77%.

Regeneration of adsorbents and recovery of heavy metals: a ...
Regeneration of adsorbents and recovery of heavy metals: a ...

heavy metals and metalloid (,arsenic,) from water using adsorbents. But less attention was paid to recycling of used adsorbents and ,recovery, of the heavy metals from the desorbing agents. For regeneration and reuse of adsorbents, various possible regenerating agents such as acids, alkalis and chelating agents (such as ethylene diamine tetraacetic

Arsenic Removal From Water | Fluence
Arsenic Removal From Water | Fluence

The adsorption of ,arsenic, on media coated with iron hydroxide is very effective because of the affinity between the two elements. In addition, low operating costs make this ,process, the best alternative when treating ,high arsenic, concentration for the production of both drinking water and mineral water.

Waste Water Treatment DataBase
Waste Water Treatment DataBase

Design, of Cost-effective Coal Washery Effluent Treatment Plant for Clean Environment Equilibrium Uptake, Sorption Dynamics, Process Development, and Column Operations for the Removal of Copper and Nickel from Aqueous Solution and ,Wastewater, Using Activated Slag, a Low-Cost Adsorbent

Wastewater Treatment through Low Cost Adsorption ...
Wastewater Treatment through Low Cost Adsorption ...

7/4/2016, · This treatment consists of immersing the pine bark into diluted ,acid, media at slightly ,high, temperatures such as 50°C–70°C [34–36] before performing the adsorption tests. The acidic solution needs to be diluted to secure the integrity of the sorbent during the pre-treatment.

Arsenic Contamination (Water and Wastewater) Equipment ...
Arsenic Contamination (Water and Wastewater) Equipment ...

Powerful ,high,-end AAS devices for highly efficient and sensitive multielement analysis for research and everyday lab use. Easy to use – simple multielement analysis with no need for lamp changes. Powerful – wide dynamic range and continuous calibration. Cost-efficient – ,high, …

Regeneration of adsorbents and recovery of heavy metals: a ...
Regeneration of adsorbents and recovery of heavy metals: a ...

heavy metals and metalloid (,arsenic,) from water using adsorbents. But less attention was paid to recycling of used adsorbents and ,recovery, of the heavy metals from the desorbing agents. For regeneration and reuse of adsorbents, various possible regenerating agents such as acids, alkalis and chelating agents (such as ethylene diamine tetraacetic

Design of an innovative plant for the wastewater recovery ...
Design of an innovative plant for the wastewater recovery ...

Wastewater, Pollutants ,Design, of an innovative plant for ,the wastewater recovery and purification in, the food & beverage industry 4th International Conference on Sustainable ,Design, and Manufacturing, Bologna, Italy Marco Bortolini The origin and previous use of F&B ,process, water affects its purity.

Acid Mine Case Study - vsep.com
Acid Mine Case Study - vsep.com

homogeneous and allows very ,high, levels of ,recovery, of filtrate from the feed material. In the case ,of Acid, Mine Drainage, up to 97% of the water can be filtered in a single pass filtration using V SEP. Flux is inversely related to % ,recovery,, so the optimum % ,recovery, may vary for each application. Other methods like filter presses are done in batch

A critical review of resource recovery from municipal ...
A critical review of resource recovery from municipal ...

Consequently, nitrogen (N) and phosphorous (P) removal technologies have been implemented into WWTPs. 2 The most widely used ,wastewater, treatment technology is the conventional activated sludge (CAS) ,process,, in which aerobic microorganisms metabolise the organic fraction present in the ,wastewater, under constant oxygen supply. 3 Although the CAS ,process, succeeds in meeting legal effluent quality standards, it is considered unsustainable due to its low resource ,recovery, …

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