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Boron removal from fracturing flowback fluid

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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Boron removal from fracturing flowback fluid
Species Abundance and Function of Ammonia-oxidizing ...
Species Abundance and Function of Ammonia-oxidizing ...

2/11/2015, · ,Ammonia, oxidation is the first step in nitrification and was thought to be performed solely by specialized bacteria. The discovery ,of ammonia,-oxidizing …

(PDF) Characterization and Treatment of Wastewater from ...
(PDF) Characterization and Treatment of Wastewater from ...

The ,wastewater, was contaminated with various types of heavy metals such as Zn, Fe, Cu, Mn, Pb, Cd, Co, Cr, Mg and Ni and their concentration is higher than the acceptable environmental levels.

Pollution Prevention for the Metal Finishing Industry ...
Pollution Prevention for the Metal Finishing Industry ...

Wastewater, treatment sludges from specific operations not included in this classifica- tion system are: •Sulfuric acid anodizing of aluminum •Tin ,plating, or carbon steel •,Zinc plating, (segregated basis) on carbon steel •Aluminum or ,zinc,-aluminum ,plating, on carbon steel •Cleaning/stripping associated with tin, ,zinc,, and aluminum ,plating, on carbon steel •Chemical etching and milling of aluminum.

Supplementation of ammonium bicarbonates for the treatment ...
Supplementation of ammonium bicarbonates for the treatment ...

The fruit cordial ,wastewater, in question is a purple soft drink that contains the juice of grapes, raspberries and blackcurrants, which has been analysed to be lacking in alkalinity and nitroge-nous resources [1]. Preparation of fruit cordial ,wastewater, was carried out according to a previous ,study, by diluting the stock liquor [7].

Heavy metals | Environmental studies essays | EssaySauce ...
Heavy metals | Environmental studies essays | EssaySauce ...

Water is polluted with ,zinc,, due to the presence of large quantities of ,zinc, in the ,wastewater, of industrial plants. This ,wastewater, is not purified satisfactorily. One of the consequences is that rivers are depositing ,zinc,-polluted sludge on their banks. ,Zinc, may also increase the ,acidity, of waters.

OIT Water Wastewater Study Guide Flashcards - Cram.com
OIT Water Wastewater Study Guide Flashcards - Cram.com

Study, Flashcards On ,OIT Water Wastewater Study Guide, at Cram.com. Quickly memorize the terms, ... thereby lowering the pH and increasing the ,acidity, of water. ... Since ,ammonia, is a weak base, it combines with acids to form salts.

Pollution Prevention in the Plating Process
Pollution Prevention in the Plating Process

Alkaline zinc baths also form, carbonate, similar to cyanide solutions. Symptoms of this include yellows in blue bright chromate, a drop in brightness, and poor coverage. If, carbonate, levels become too high, platers should consider one of the following options: Decant the bath and rebuild to specifications ; Freeze out the, carbonate

MIT - Massachusetts Institute of Technology
MIT - Massachusetts Institute of Technology

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The Effect of Phenol on Heterotrophic Ammonia-Oxidizing ...
The Effect of Phenol on Heterotrophic Ammonia-Oxidizing ...

The main objective of this ,study, was the investigation of phenol effects on some industrial soils and wastewaters and activity of heterotrophic ,ammonia,-oxidizer bacteria with regarding to ,ammonia, removal. MATERIALS AND METHODS Soil and ,wastewater, sampling Soils and wastewaters used in this ,study, were taken from chemical refinery

A pilot study on a membrane process for the treatment and ...
A pilot study on a membrane process for the treatment and ...

1/10/2002, · The contaminated rinse waters may contain heavy metals such as chromium, copper, ,zinc,, lead, nickel and iron, as well as monovalent ions, depending on the ,plating, process. The spent final rinse water contains a much lower level of these heavy metals and monovalent ions (measured conductivity generally less than 30 μS/cm).

BJC | The Beauty and Joy of Computing
BJC | The Beauty and Joy of Computing

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Solved: 17 Problem 1. A Chemical Analysis Of Wastewater Sa ...
Solved: 17 Problem 1. A Chemical Analysis Of Wastewater Sa ...

Question: 17 Problem 1. A Chemical Analysis Of ,Wastewater, Sample With An Initial PH Of 9.3 Is Given By The Following Table: Substance Concentration Molecular Weight (mg/L) (g/mole) Bi-carbonate (HCO3) 100 61 ,Ammonia, (NH) 17 Chloride (CI) 250 35,5 Sulfate (SO) 96 A) Estimate The Methyl Orange ,Acidity, As Mg/L Caco, B) Estimate The Phenolphthalein ,Acidity, As Mg(L ...

WASTEWATER TREATMENT & ZERO LIQUID DISCHARGE SOLUTIONS …
WASTEWATER TREATMENT & ZERO LIQUID DISCHARGE SOLUTIONS …

The ,wastewater, treatment plant at Coats Vietnam will treat the ,wastewater, originating from it’s polyester dyeing (disperse dyes - 70%) and nylon dyeing (acid dyes - 30%). Additional ,wastewater, originates from the cotton towel dyeing using vat/reactive dyes. For disperse dyeing, the two main chemicals used are a buffer and a levelling agent.

NITRIFICATION KINETICS IN AQUACULTURE WASTEWATER …
NITRIFICATION KINETICS IN AQUACULTURE WASTEWATER …

The objective of this ,study, was to evaluate the removal efficiencies of ammonium, ... research, synthetic ,wastewater, for ,ammonia, nitrogen concentration of 5 mg NH 3-N/l requires ... The degree of ,acidity,(pH) defined as hydrogen ions(H+) ...

Sources and Treatment of Wastewater in the Nonferrous ...
Sources and Treatment of Wastewater in the Nonferrous ...

Both open-pit and underground copper mines are currently operating in the United States. ,Wastewater, from copper mining comes from seepage or runoff from the mine or spoil dumps, and from the water sent into the mine for utility uses. The ,wastewater, from open-pit copper mines ranges from zero to 0.3 cubic meter of water per metric ton of ore mined.

The Truth about Water Contamination
The Truth about Water Contamination

Think of the effects it can have on the ,plant,, animal or human body. Acid rain raises the level of heavy metals, some of which are poisonous, in drinking water supplies. Polluted acidic waters contain higher than average levels of heavy and toxic metals, carbon monoxide, volatile organic compounds (VOCs), photochemical oxidants, and a laundry list of other toxins that pose serious health threats.

Assessment of the Ship Plume Dilution Study
Assessment of the Ship Plume Dilution Study

The ,study, was conducted by EPA’s Ocean Survey Vessel Bold in July 2008. It was designed to characterize the near‐field dilution (0 – 15 meters) that occurs to ,wastewater, that is discharged from a stationary cruise ship. The dilution factors in this ,study, were calculated by taking the known

Surface Technology Environmental Resource Center - STERC
Surface Technology Environmental Resource Center - STERC

It should be noted that chromates and phosphates, which are present in ,plating, shop waste, under specified conditions form quite insoluble salts with several of the cations used in ,plating, including load and ,zinc,. Most other ,plating, cations, such as cadmium, arsenic, mercury, silver, gold, etc., are found in such small quantities that, as a rule, they need not be considered in liquid-waste disposal.

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