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Gel breaking 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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Gel breaking of oilfield fracturing flowback fluid
Frontiers | A Review of Phosphorus Removal Technologies ...
Frontiers | A Review of Phosphorus Removal Technologies ...

The removal of phosphorus (P) from ,domestic wastewater, is primarily to reduce the potential for eutrophication in receiving waters, and is mandated and common in many countries. However, most P-removal technologies have been developed for use at larger ,wastewater treatment, plants that have economies-of-scale, rigorous monitoring, and in-house operating expertise.

(PDF) Wastewater Treatment: Understanding the Activated ...
(PDF) Wastewater Treatment: Understanding the Activated ...

Wastewater containing aeration tank, the mixed liquor passes into a settling tank, or a wide variety of biodegradable organics can be treated by the clarifier, where the biomass, or sludge, settles by gravity from activated sludge process, as long as the concentration is in the the treated wastewater.

What is aeration tank?
What is aeration tank?

The Role of Surface ,Aeration, in ,Wastewater Treatment,. The process ,of aeration, is used to mix, circulate, or dissolve air into a liquid or another substance. Mechanical ,aeration, can reduce the amount of chemicals needed to treat a body of water by providing the oxygen that bacteria need to ,function, …

Aeration - an overview | ScienceDirect Topics
Aeration - an overview | ScienceDirect Topics

Often, combinations of anaerobic and aerobic treatment processes are used to achieve complete treatment of wastewater (Figure 4). The anaerobic system alone is not enough to, remove, nitrogen and phosphorus present in the wastewater. Effluent obtained from an anaerobic system requires aerobic treatment to remove ammonia present in the effluent.

(PDF) Protozoa in Wastewater Treatment: Function and ...
(PDF) Protozoa in Wastewater Treatment: Function and ...

The main task of the ,wastewater treatment, plan t is then to eliminate fatty acids and the amino acids formed by protein hydrolysis. Municipal sewage a verages an organic load of 300 mg BOD 5 l ...

Design criteria for waste water treatment
Design criteria for waste water treatment

Extended Aeration Used to treat industrial wastewater containing soluble organics that need longer detention times. This is the same as complete mix, with just a longer aeration. Advantage - long detention time in the aeration tank; provides equalization to absorb sudden/temporary shock loads. Less sludge is generally produced because some of the bacteria are digested in the aeration tank. One of the simpler …

The Three most important parameters in the aeration tank ...
The Three most important parameters in the aeration tank ...

18/9/2016, · • If the aeration tank, effluent ammonia, concentration is < 1 mg/L, the conversion of all influent organic waste into bacterial cells has been achieved. In short, the aeration tank has properly performed its function. The focus now moves towards separating the …

Demetallization of Sewage Sludge Using Low-Cost Ionic ...
Demetallization of Sewage Sludge Using Low-Cost Ionic ...

Chemical extraction is generally much faster and can be achieved with ,acid treatment, (H 2 SO 4, HCl, HNO 3, citric, and oxalic ,acid,) or by contacting the sludge with chelating agents (EDTA/NTA). (17) During ,acid treatment,, the heavy metals in the sludge are dissolved via an exchange of protons ( eq 1 ), (4) while extraction with chelating agents forms an EDTA/NTA-metal complex ( eq 2 ).

Process Optimization of Aeration in the Biological ...
Process Optimization of Aeration in the Biological ...

used in the rehabilitation of wastewater treatment plants and the construction of new wastewater treatment plants [3]. The aeration air is achieved by introducing, air under pressure, into the activated sludge tank and the oxygen reaches the water due to air bubbles and rise to the surface. Surface aeration units are based on entertainment of

Diffused Air vs. Mechanical Wastewater Aeration Systems | SSI
Diffused Air vs. Mechanical Wastewater Aeration Systems | SSI

Aeration forms a vital part of the wastewater treatment process, particularly the secondary treatment phase. It, mixes wastewater with oxygen to allow aerobic bacteria to digest biosolid particles in the water.

How to Reduce the Energy Cost for a Wastewater Aeration System
How to Reduce the Energy Cost for a Wastewater Aeration System

22/7/2019, · Why Is Aeration in Wastewater Treatment Important? In the primary and especially the secondary treatment of wastewater, it is common to use aeration as a method of removing organic matter. Aeration, causes oxygen to mix with the wastewater and facilitate the work of aerobic bacteria in breaking down organic waste.

Water Aeration - Water and Wastewater Information
Water Aeration - Water and Wastewater Information

The function of the aerobic tank is to allow the activated sludge to perform aerobic respiration, further decompose organic matter into inorganic matter, and remove pollutants. ... Flocculation prior to the belt filter - France - Case Study

Municipal waste management systems for domestic use ...
Municipal waste management systems for domestic use ...

15/11/2017, · Excessive ,aeration, will cause a temperature drop and a great loss of moisture by evaporation, causing the decomposition process to stop. On the other hand, low ,aeration, prevents enough water evaporation, generating excessive moisture and an anaerobic environment . Most composters are designed to provide adequate ,aeration, of the waste.

Biological wastewater treatment and bioreactor design: a ...
Biological wastewater treatment and bioreactor design: a ...

11/12/2019, · Stirred tank bioreactors for aerobic waste water treatment Activated sludge process, which involves aerobic treatment of industrial effluents in stirred tank bioreactors, is one among the very old industrial applications of biotechnology. Still this process is …

Design criteria for waste water treatment
Design criteria for waste water treatment

11/4/2012, · Extended ,Aeration, Used to treat industrial ,wastewater, containing soluble organics that need longer detention times. This is the same as complete mix, with just a longer ,aeration,. Advantage - long detention time in the ,aeration tank,; provides equalization to absorb sudden/temporary shock loads. Less sludge is generally produced because some of the bacteria are digested in the ,aeration tank,. One ...

Project Report on Waste Water Treatment
Project Report on Waste Water Treatment

The effluent from the ,aeration tank, containing the flocculent microbial mass, known as sludge, is separated in a settling ,tank, sometimes called a secondary settler of a clarifier. In the settling ,tank, the separated sludge exits without contact with the organic matter and becomes activated to the ,aeration tank, as a seed; the rest is wasted.

Lesson 8: Nitrification and Denitrification
Lesson 8: Nitrification and Denitrification

The extended aeration process is one, modification of the activated sludge process which provides bi,ological, treatment for the removal of biodegradable organic wastes under aerobic conditions,. Air may be supplied by mechanical or diffused aeration to provide the oxygen required to sustain the aerobic biological process.

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