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waste oil extraction

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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waste oil extraction
Organic Phosphorus Extraction in the Fouling of the ...
Organic Phosphorus Extraction in the Fouling of the ...

P o-HCl is moderately active organic phosphorus (extracted with acid) without inactive organic phosphorus and residual phosphorus. The optimization method had two steps. First, KHCO 3 solution was used to extract active organic phosphorus, and HCl was used to extract moderately active organic phosphorus from the residues.

Water Pollution? | Yahoo Answers
Water Pollution? | Yahoo Answers

21/2/2006, · ,Water pollution, is a term that describes any adverse effect upon ,water, bodies (lakes, rivers, the sea, groundwater etc.) caused by man and his activities. Although natural phenomena such as volcanoes, storms, earthquakes etc. also cause major changes in ,water, chemistry and the ecological ,status, of ,water,, these are not deemed to be ,pollution,.

(PDF) Phosphorus Removal from Eutrophic Waters with an ...
(PDF) Phosphorus Removal from Eutrophic Waters with an ...

Oliveira et al. (2012) used aluminum hybrid nanocomposite to treat ,phosphorus, from eutrophic water and found a good selectivity for ,phosphorus removal, with a capacity of 0.80 mg(P)/g.

How the EPA managed to spill 3 million gallons of mining ...
How the EPA managed to spill 3 million gallons of mining ...

10/8/2015, · That acidic wash, in turn, dissolved and picked up various heavy metals in the earth, including zinc, cadmium, arsenic, lead, and copper. This toxic stew is known as ",acid mine, drainage," and it's ...

Ceramic membrane technology for water and wastewater ...
Ceramic membrane technology for water and wastewater ...

Industrial wastewater, treatment by ceramic membrane has been comprehensively reviewed recently . Therefore, in this section, a succinct overview of ceramic membrane performance is provided, which mainly focuses on the applications of ceramic membrane in water treatment, municipal ,wastewater, treatment and secondary-treated effluent treatment.

Chemiluminescence of the Ce(IV)/CDP-Star System Based on ...
Chemiluminescence of the Ce(IV)/CDP-Star System Based on ...

The phosphatase-like activity of Ce(IV) ions was applied for chemiluminescence (CL) analysis for the first time. Ce(IV) can catalyze the hydrolysis of CDP-star, which is a phosphatase substrate, to produce strong CL emission. The CL performance of the Ce(IV)/CDP-star system can be significantly improved by the addition of ionic liquids. In the presence of 1-butyl-3-methylimidazolium ...

Effects of the discharge of uranium mining effluents on ...
Effects of the discharge of uranium mining effluents on ...

24/10/2017, · The water quality of the Antas reservoir, under the influence of treated effluents from a uranium mining area Ore Treatment Unit (UTM) with ,acid mine, drainage, was investigated. Samples were ...

Application of Zeolite in Water Treatment
Application of Zeolite in Water Treatment

It can be used to remove phosphorus, lead and hexavalent chromium in wastewater treatment. The, zeolite, after failure can be used for the reuse of concentrated brine after countercurrent regeneration. The Technical indexes of, zeolite, filter material are as follows: Adsorption properties. The Specific surface area (m2/g): 122-355;

Arsenic Removal and Recovery from Copper Smelting ...
Arsenic Removal and Recovery from Copper Smelting ...

Removal of Arsenic from Strongly Acidic Wastewater Using, Phosphorus Pentasulfide, As Precipitant:, UV-Light Promoted Sulfuration Reaction, and Particle Aggregation. Environmental Science & Technology 2018, 52 (8) , 4794-4801.

WO2004083118A1 - Process for removing metal impurities ...
WO2004083118A1 - Process for removing metal impurities ...

The process according to claim 1, wherein the crude wet-process phosphoric ,acid, is brought into contact with the precipitating ,agent, composition for a time period of from about 5 seconds to about 60 minutes. 11. The process according to claim 10, wherein the time period is about 5 …

Report on cyanide removal from industrial waste water
Report on cyanide removal from industrial waste water

Key points:- 1) The process is optimally carried out at a pH of about 5.0 to 6.0 and iron is added as ferrous sulfate (FeSO4-7H2 2) Ferrous sulfate usage ranges from about 0.5 to 5.0 moles Fe per mole of CN‾ depending on the desired level of treatment O).

Column-mode phosphate removal by a novel highly selective ...
Column-mode phosphate removal by a novel highly selective ...

1/6/2005, · Thus, this research gives the promising results for, removal, of, phosphate, from, wastewater based on a fixed-bed process,. The zero-level phosphate emission could be achieved in the treated, wastewater., Furthermore, phosphoric acid resin RGP can be easily prepared. Only two steps are needed (Jyo et al., 1997). 4. Conclusion

Present Status Of Environmental Pollution In Japan
Present Status Of Environmental Pollution In Japan

Despite many ,pollution, control measures taken by administration, Japan faces air, water, and soil contamination problems. In this paper, the present ,status, of environmental problems in Japan is discussed. Special attention is paid to soil ,pollution,, groundwater ,pollution,, chemical wastes, ,acid, rain, and deterioration of natural environment and ...

Pollution Status of Pakistan: A Retrospective Review on ...
Pollution Status of Pakistan: A Retrospective Review on ...

Wastewater, irrigation poses several threats to the environment through contamination by heavy metals. It also poses a number of potential risks to human health via the consumption of or exposure to pathogenic microorganisms and heavy metals . 2. ,Pollution Status, of Heavy Metal in Pakistan

METHOD TO MAKE PHOSPHORIC ACID AND AMMONIUM …
METHOD TO MAKE PHOSPHORIC ACID AND AMMONIUM …

The method is easily implemented in municipal and/or commercial/,industrial wastewater, treatment plants to remove phosphorus and thereby save significant maintenance complications associated with the unwanted build-up of struvite in pipes. Thus, disclosed and claimed herein are the following: 1. A method of producing phosphoric ,acid, comprising:

Enhanced phosphorus removal by microbial-collaborating ...
Enhanced phosphorus removal by microbial-collaborating ...

The collaborative and mutually reinforcing, phosphorus removal, in domestic, wastewater, in a sponge iron and microorganisms system was studied through a laboratory, and, a pilot scale experiment. The results showed that the total, phosphorus, concentration of the effluent of less than 0.5 mg/L could be achieved.

Wastewater quality indicators - WikiMili The Free ...
Wastewater quality indicators - WikiMili The Free ...

Wastewater quality indicators, are laboratory test methodologies to assess suitability of ,wastewater, for disposal or re-use. Tests selected and desired test results vary with the intended use or discharge location. Tests measure physical, chemical, and biological characteristics of the ,waste water,.

Treated Municipal Wastewater Reuse: A Holistic Approach ...
Treated Municipal Wastewater Reuse: A Holistic Approach ...

One shallow shell ,weak,-,acid, cation exchanger (SS-WAC) and a hybrid anion exchanger (HAIX-NanoZr) with specific affinity toward nitrate and phosphate form the heart of HIX-NP recovery process. Studies were conducted using secondary ,wastewater, from the Bethlehem, PA plant and CO2 was the only regenerant used replacing the need for other mineral acids.

Frontiers | Cyanobacteria: A Precious Bio-resource in ...
Frontiers | Cyanobacteria: A Precious Bio-resource in ...

The application of cyanobacteria in management of soil and environment includes the economic benefits (reduced input cost), nutrient cycling, N 2-fixation, bioavailability of ,phosphorus,, water storage and movement, environmental protection and prevention of pollution and land degradation especially through reducing the use of agro-chemicals, and recycling of nutrients and restoration of soil ...

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