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Comprehensive treatment of acid wastewater containing formaldehyde

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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Comprehensive treatment of acid wastewater containing formaldehyde
Significance of bio-treatment by acid washing for ...
Significance of bio-treatment by acid washing for ...

removal, of heavy metals such as ,arsenic, from ,wastewater, and water are important to protect a public health (Zaini et al., 2011). Microbes have co-habit with different metals from initial history. Thus, microorganisms have been effectively used to remove heavy metal such as ,Arsenic, from ,wastewater, in a variety of patterns.

Removal of Arsenic from Wastewater Using Chemical ...
Removal of Arsenic from Wastewater Using Chemical ...

removal of arsenic. Reductions of arsenic concentrations of 81.6% were obtained in wastewater pretreated with hydrated lime. There was a noticeable difference in the effectiveness when the alum concentration was increased. At a concentration of 500 mg/L, the …

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). The pilot-scale experiment with a constant flow rate of 5 m3/day was operated for four months using real ,wastewater, …

US5368703A - Method for arsenic removal from wastewater ...
US5368703A - Method for arsenic removal from wastewater ...

A process and apparatus for removing arsenic from aqueous media is described. The process in general utilizes ferrous ion provided by an electrochemical cell which is added to the aqueous media in...

A critical review on arsenic removal from water using iron ...
A critical review on arsenic removal from water using iron ...

arsenic from wastewater are shown in Fig. 2. Klerk et al. (2015)37 conducted a continuous circuit co-precipitation of As(V) with ferric ions by lime neutralization. Two-stage continuous exper-iments (operating at pH 4 and 8, respectively) produced the lowest residual arsenic concentration when Fe/As molar ratio was kept at 4.

Next-Generation Arsenic Removal - Water Online
Next-Generation Arsenic Removal - Water Online

The efficient ,arsenic,-,removal, rate allows some raw water to be bypassed and blended with the treated water, while still staying far below the regulated limit. Mitigating Factors To Consider There are two major responsibilities to recognize before taking on media regeneration: operator training and ,wastewater, …

Significance of bio-treatment by acid washing for ...
Significance of bio-treatment by acid washing for ...

removal, of heavy metals such as ,arsenic, from ,wastewater, and water are important to protect a public health (Zaini et al., 2011). Microbes have co-habit with different metals from initial history. Thus, microorganisms have been effectively used to remove heavy metal such as ,Arsenic, from ,wastewater, in a variety of patterns.

IRJET- Removal of Arsenic from Wastewater by Acid Treated ...
IRJET- Removal of Arsenic from Wastewater by Acid Treated ...

https://www.irjet.net/archives/V6/i5/IRJET-V6I51034.pdf

Method for arsenic removal from wastewater - Anco ...
Method for arsenic removal from wastewater - Anco ...

Wastewater treatment then to remove arsenic involves adsorption, coprecipitation, surface complexation, and electrostatic attraction. Frequently, the processes overlap and distinction becomes difficult.

Arsenic Removal from Wastewater Using Adsorptive Mediums ...
Arsenic Removal from Wastewater Using Adsorptive Mediums ...

Different adsorptive mediums and adsorbents’ compounds were chosen to remove ,arsenic, from Yangzonghai Lake ,wastewater,. Results showed that Ca(OH)2, attapulgite, bentonite, LDHs these adsorptive mediums had adsorptive capacities of less than 2.5 mg/g of As ,removal, and it took long time for sediment before monitoring; adsorbents compounds’ results showed Fe2O3 and quartz sands had …

Process Improvement For Arsenic Removal From Dirty Acid ...
Process Improvement For Arsenic Removal From Dirty Acid ...

Process improvement for ,arsenic removal, from dirty ,acid wastewater, 2 nd World Conference on Industrial Chemistry and Water Treatment. Dongyun Du. South-Central University for Nationalities, China. ScientificTracks Abstracts: Ind Chem. DOI: 10.4172/2469-9764-C1-005

Heavy Metals and Arsenic Treatment in Mining Wastewater | P2W
Heavy Metals and Arsenic Treatment in Mining Wastewater | P2W

The regulation around the world for heavy metals has become more rigorous in recent years and today the ,removal, process is a required feature in all mining sectors. Metals in the ,wastewater, are usually found in their salt forms which lead to the fact that most of the metals are totally soluble in the liquid phase and are difficult to remove by simple filtration or other simple physical processes.

IRJET- Removal of Arsenic from Wastewater by Acid Treated ...
IRJET- Removal of Arsenic from Wastewater by Acid Treated ...

https://www.irjet.net/archives/V6/i5/IRJET-V6I51034.pdf

Coagulation and Flocculation in Water and Wastewater ...
Coagulation and Flocculation in Water and Wastewater ...

Examples of successful applications are copper and mercury reductions from wastewaterplant effluents. Two applications discussed in more detail below are ,arsenic, and fluoride removals in potable water treatment: ,Arsenic removal,. ,Arsenic, is a commonly occurring toxic element and long term exposure to ,arsenic, is injurious to health.

Process Improvement For Arsenic Removal From Dirty Acid ...
Process Improvement For Arsenic Removal From Dirty Acid ...

Process improvement for ,arsenic removal, from dirty ,acid wastewater, 2 nd World Conference on Industrial Chemistry and Water Treatment. Dongyun Du. South-Central University for Nationalities, China. ScientificTracks Abstracts: Ind Chem. DOI: 10.4172/2469-9764-C1-005

Humic acid and arsenic removal from well-water
Humic acid and arsenic removal from well-water

agent (KMnO4) and humic ,acid, dosage on the rejection of ,arsenic, • Pilot scale experiments for ,arsenic removal, with nanofiltration and reverse osmosis membranes, examination the influence of different oxidant agents (ozone, H2O2, NaOCl, air, KMnO4) c) Experiments for high ,arsenic, content ,wastewater,:

Removal and immobilization of arsenic from wastewater via ...
Removal and immobilization of arsenic from wastewater via ...

This work reported the synthesis of natroalunite phase NaAl 3 (SO 4) 2 (OH) 6 using ,arsenic,-containing industrial ,wastewater, from benzyl ,acid, production. The synthesis temperature and time were optimized to obtain the pure natroalunite phase composites with high crystallinity.

(PDF) Arsenic removal from water/wastewater using ...
(PDF) Arsenic removal from water/wastewater using ...

Arsenic removal, from water/,wastewater using adsorbents—A critical review,. Journal of Hazardous Materials, 2007. Charles Pittman

Humic acid and arsenic removal from well-water
Humic acid and arsenic removal from well-water

agent (KMnO4) and humic ,acid, dosage on the rejection of ,arsenic, • Pilot scale experiments for ,arsenic removal, with nanofiltration and reverse osmosis membranes, examination the influence of different oxidant agents (ozone, H2O2, NaOCl, air, KMnO4) c) Experiments for high ,arsenic, content ,wastewater,:

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