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Standard for recovery and utilization of 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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Standard for recovery and utilization of acid wastewater
CN101812593A - Method for depositing vanadium wastewater ...
CN101812593A - Method for depositing vanadium wastewater ...

The method comprises the following steps:, adding acid ammonium salt, for depositing vanadium wastewater according to a certain liquid-to-solid ratio into vanadium-extraction tailings, stirring...

Wastewater Treatment and Reclaim Systems
Wastewater Treatment and Reclaim Systems

Filtration of ,arsenic,-,containing, grinding/sawing ,wastewater, Last Rinse Recycling Continuous neutralisation Treatment of HF-,containing wastewater, by precipitation, flocculation and sludge treatment Batch Treatment for scrubber ,wastewater, and ,arsenic,-,containing, regenerates 15 m³/h 20 m³/h 40 m³/h 5 m³/h 100 m³/d Infineon Dresden/Germany

Arsenic acid | H3AsO4 - PubChem
Arsenic acid | H3AsO4 - PubChem

Arsenic acid, is an ,arsenic, oxoacid comprising one oxo group and three hydroxy groups attached to a central ,arsenic, atom. It has a role as an Escherichia coli metabolite. It is a conjugate ,acid, of an arsenate(1-) and an arsenate ion.

Arsenic Treatment Technologies for
Arsenic Treatment Technologies for

6.1 Scale of Identified Soil Washing/,Acid, Extraction Projects for ,Arsenic, Treatment ..... 6 - 1 7.1 Scale ... and treaters of ,arsenic,-contaminated waste and ,wastewater,; owners and operators of drinking water treatment plants; ... the treatment of soil, waste, and water ,containing arsenic,, a contaminant that can be difficult to treat and

Industrial wastewater treatment - Wikipedia
Industrial wastewater treatment - Wikipedia

Fossil-fuel power stations, particularly coal-fired plants, are a major source of industrial ,wastewater,.Many of these plants discharge ,wastewater, with significant levels of metals such as lead, mercury, cadmium and chromium, as well as ,arsenic,, selenium and nitrogen compounds (nitrates and nitrites).,Wastewater, streams include flue-gas desulfurization, fly ash, bottom ash and flue gas mercury ...

The method of purification of sulfuric acid wastewater ...
The method of purification of sulfuric acid wastewater ...

The method of purification of, acidic wastewater vanadium, production includes the operations of neutralization water and chemical, precipitation, of compounds of vanadium, manganese, chromium reagents, followed by the separation and recycling of sludge.

Arsenic Contamination from Water - ScienceBuzz
Arsenic Contamination from Water - ScienceBuzz

Briefly, humic ,acid, (0.5 grams) was dissolved in 50 milliliters of water. This solution was added to the three beakers (flasks) ,containing, nanoparticles and stirred within flasks for 30 minutes at 90° Celsius. The humic ,acid, coated nanoparticles were removed from each flask using magnetic facilitated decanting. Adsorption of ,Arsenic

Arsenic and Selenium Species in Petro Refinery Wastewater
Arsenic and Selenium Species in Petro Refinery Wastewater

13/10/2017, · The method was effective for studying the quantitative speciation of ,arsenic, and ,selenium species in petroleum refinery wastewater,, as shown in Figure 3. Figure 3.

Vanadium Removal from Fuel Oil and Waste Water in Power ...
Vanadium Removal from Fuel Oil and Waste Water in Power ...

A method ,for treating, fuel oil and ,waste water, of power plant is suggested which is including ,vanadium, elimination through contacting with humic ,acid, coated magnetic nano-adsorbent. The nano-adsorbent was modified with humic ,acid, (HA) as a compound having carboxyl, hydroxyl and amin functional groups.

(PDF) A review of processing technologies for vanadium ...
(PDF) A review of processing technologies for vanadium ...

Generally, three methods are used for vanadium processing: Acid Leaching, Alkaline leaching or, Salt processing. Salt processing, is the most widely use one especiall for VTM ores.

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

This invention relates to a process for removing ,arsenic containing, compounds from ,wastewater,, groundwater, and the like wherein said compounds are normally present in a soluble or dissolved form. Incidental thereto, the process of this invention also is capable of removing certain heavy metals associated with such ,wastewater, or groundwater streams.

Arsenic and Selenium Species in Petro Refinery Wastewater
Arsenic and Selenium Species in Petro Refinery Wastewater

13/10/2017, · The method was effective for studying the quantitative speciation of ,arsenic, and ,selenium species in petroleum refinery wastewater,, as shown in Figure 3. Figure 3.

Oxidation Process of Arsenic in Acidic Wastewater ...
Oxidation Process of Arsenic in Acidic Wastewater ...

The oxidation process of As( Ⅲ) in acidic ,wastewater containing arsenic, was studied.The E-p H diagram of As-H2 O system was analyzed.The oxidation effects of As( Ⅲ) oxidized by H2 SO5 produced by electrolysis and electrolytic oxidation of ,arsenic, in sulfuric ,acid,-,arsenic, mixed system were compared.The experimental results show that the oxidation potential of trivalent ,arsenic, is higher ...

Remediation of bio-refinery wastewater containing organic ...
Remediation of bio-refinery wastewater containing organic ...

The application of magnetic nanoparticles (MNP) for ,wastewater, treatment is considered a promising practice as they possess enhanced physical properties that improve the overall efficiency of the adsorption process, which in turn, provides a viable solution to the problems encountered in conventional ,wastewater, treatment processes (Qu et al. 2013; Thekkudan et al. 2016; Li et al. 2017).

Vanadium removal from Stretford purge. Final technical ...
Vanadium removal from Stretford purge. Final technical ...

In a method for treating spent Stretford solution, to dispose of thiosulfate and recover the vanadium and anthraquinonedisulfonic acids (ADA) that it contains: the solution is acidified with sulfuric acid to decompose the, thiosulfate, to sulfur and sulfur dioxide; steam stripped to remove the sulfur dioxide and sulfur; and limed to remove added sulfate and restore the solution pH.

Arsenic | As - PubChem
Arsenic | As - PubChem

Arsenic, is a naturally occurring allotropic pnictogen and metalloid trace element with atomic symbol As, atomic number 33, and atomic weight 74.92 that is found in water, air, food, and soil, and has a role as a micronutrient. ,Arsenic,, which is highly toxic with acute or chronic exposure to moderate or high levels through an unknown mechanism of action, is used in many industrial processes, as ...

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