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Reinjection standard of oilfield 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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Reinjection standard of oilfield fracturing flowback fluid
EP 1731485 A1 20061213 - METHOD OF TREATING STRONGLY ACID …
EP 1731485 A1 20061213 - METHOD OF TREATING STRONGLY ACID …

The method comprises the steps of (i) adding hydroxyapatite 11 to strongly ,acid wastewater, 1A to precipitate its toxic substances as solid constituents, (ii) adding an alkaline substance 12 to the ,wastewater, 1A to neutralize it, (iii) adding a coagulant 13 to the ,wastewater, 1A to ,coagulate, the precipitated solid constituents, and (iv) removing ...

Five Types of Chemicals Used in WasteWater Treatment ...
Five Types of Chemicals Used in WasteWater Treatment ...

5. Hydrochloric ,Acid,. While some chemicals work to elevate ph level, there are also chemicals to lower the ph levels. One of them is hydrochloric ,acid,; While the chemical has many uses in industry, it is also used in ,wastewater, treatment. Hydrochloric ,acid,’s primary function is to lower the ph of the ,wastewater,.

Floating Sludge in Wastewater Treatment
Floating Sludge in Wastewater Treatment

25/6/2018, · Q. Hello, We are treating shrimp process plant ,waste water, primarily contains organic matter and sodium tri poly phosphate, We ,coagulate, the ,wastewater, with alum and add anionic flocculant. Sludge separation is very good but it floats instantly and very difficult to remove from the lamella clarifier.

Continuous ozonation of urban wastewater: Removal of ...
Continuous ozonation of urban wastewater: Removal of ...

1/8/2019, · Ozone is a powerful oxidant and has been widely used during the last years for the treatment of, wastewater,. It reacts selectively with organic compounds via a direct reaction with ozone molecules, or through an indirect pathway with hydroxyl radicals (HO •) under alkaline pH conditions, which result from ozone decay in water and wastewater.

Deli Meats Processing Wastewater Treatment System Process ...
Deli Meats Processing Wastewater Treatment System Process ...

Deli Meats Processing ,wastewater, is treated by adjusting pH downward using ,acid, and strong coagulant chemistry to break emulsions caused by cleaning agents and sanitizers. The pH is then raised to ~8.5 with a coagulant added to precipitate and ,coagulate, solids and fats. A flocculent is then used to increase particle size and assist in separation.

Floating Sludge in Wastewater Treatment
Floating Sludge in Wastewater Treatment

25/6/2018, · Q. Hello, We are treating shrimp process plant ,waste water, primarily contains organic matter and sodium tri poly phosphate, We ,coagulate, the ,wastewater, with alum and add anionic flocculant. Sludge separation is very good but it floats instantly and very difficult to remove from the lamella clarifier.

Biodegradability Enhancement of Purified Terephthalic Acid ...
Biodegradability Enhancement of Purified Terephthalic Acid ...

In this work, the coagulation-flocculation process was used as pretreatment for purified terephthalic ,acid, (PTA) ,wastewater, with the objective of improving its overall biodegradability.

Ozonation of Wastewater: Rate of Ozone Consumption and ...
Ozonation of Wastewater: Rate of Ozone Consumption and ...

From its dose dependence, it follows that new •OH-generating sites are formed during ozonation. The •OH scavenging capacity of the ,wastewater, DOC has been determined at 3 × 10 4 (mg DOC) −1 s −1. The contribution of bicarbonate to the OH scavenging capacity is small in comparison, ∼10% of DOC.

METHOD OF TREATING STRONGLY ACID WASTEWATER …
METHOD OF TREATING STRONGLY ACID WASTEWATER …

The method comprises the steps of (i) adding hydroxyapatite 11 to strongly ,acid wastewater, 1A to precipitate its toxic substances as solid constituents, (ii) adding an alkaline substance 12 to the ,wastewater, 1A to neutralize it, (iii) adding a coagulant 13 to the ,wastewater, 1A to ,coagulate, the precipitated solid constituents, and (iv) removing the coagulated solid constituents from the ...

An Unconventional Approach To Dairy Wastewater Treatment
An Unconventional Approach To Dairy Wastewater Treatment

The alternative approach to treating the ice cream plant ,wastewater, involves a different chemical process — acidulation. In the acidulation process, sulfuric ,acid, is used to lower ,wastewater, pH to the level where the emulsified oils and milk proteins ,coagulate, which is between 3.9 and 4.3.

[Characteristics of acid red 3R wastewater treatment by ...
[Characteristics of acid red 3R wastewater treatment by ...

The application of microbubble technology for ozonation wastewater treatment, could enhance, ozone, mass transfer, improve ozonation performance, and, increase, ozone, utilization efficiency,. The ozone microbubbles were used to treat synthetic acid red 3R wastewater in the present study, and compared to ozone conventional bubbles.

Ozonation of acid red 18 wastewater using O3/Ca(OH)2 ...
Ozonation of acid red 18 wastewater using O3/Ca(OH)2 ...

1/2/2017, · Ozonation is one of the AOPs which is used to, degrade organic pollutants effectively from wastewater,, such as pesticides, dyes and herbicides and even biorecalcitrant chemical species that resist biological treatment .

How to Control Pollution in Tannery Industry?
How to Control Pollution in Tannery Industry?

Chemical air scrubber can be used to eliminate the odour nuisance in the tannery ,wastewater, treatment plant. ... since it forms an ink with the gallic ,acid, in the wastes giving them an intense black colour. ... Alum doses of 250 mg/L can be utilised to ,coagulate, combined beam and tan wastes and achieve 85% TSS and 62% BOD reduction.

how polymer is used in wastewater treatment | Industrial ...
how polymer is used in wastewater treatment | Industrial ...

It is also beneficial in ,wastewater, treatment plant. The function of polymer is to ,coagulate, any solids dirts and work in diluted water in order to free these materials from suspension. In order to use polymer in ,wastewater, treatment, people need to dilute polymer with water with a concentration around 0,5 percent.

Industrial Wastewater Treatment Guide: Expanded Edition
Industrial Wastewater Treatment Guide: Expanded Edition

Wastewater, characterizations of the production facility . ... Sometimes a slight pH adjustment will help ,coagulate, the particles, as well. ... Weak ,acid, cation (WAC) exchange resins are also often used to remove cations associated with alkalinity (temporary hardness) ...

How to Remove Emulsified Oil from Wastewater with ...
How to Remove Emulsified Oil from Wastewater with ...

Both sulfuric and hydrochloric (HCl) acids are used to break emulsions, however, hydrochloric ,acid, often seems to be superior. A step-by-step guide to both ,acid, breaking and coagulant breaking is presented below. ,Acid, Breaking Process. After the pH is measured, add ,acid, until the pH reaches a level of 4 or 5. Observe the turbidity.

Using organoclays to remove oil from water
Using organoclays to remove oil from water

If this does not work, the pH is adjusted downward, as low as 3.5 in the case of lubricants, with sulfuric or hydrochloric ,acid,. Then a cationic or anionic flocculant may need to be added to cause flocculation of the coagulated droplets, i.e. a rise to the surface of the tank so they can be skimmed off.

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