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Study on treatment technology of 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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Study on treatment technology of fracturing flowback fluid
Zincovery
Zincovery

The galvanized steel industry produces a, waste acid, with high concentrations of dissolved, zinc, and iron. After, neutralization,, this is usually disposed of into, wastewater, and landfill. This treatment is inadequate because of the wastage of, zinc, and the incomplete removal of, zinc, from, wastewater,.

(PDF) Industrial Wastewater Treatment | dieu Tran ...
(PDF) Industrial Wastewater Treatment | dieu Tran ...

Final treatment of iron and steel products before onward sale into manufacturing includes pickling in strong mineral acid to remove rust and prepare the surface for tin or chromium plating or for other surface treatments such as galvanization or painting.

containing phthalate acid esters Sono-alkalization ...
containing phthalate acid esters Sono-alkalization ...

Keywords: Central composite design, phthalate ,acid esters,, sewage sludge, soluble chemical oxygen demand, sono-alkalization. Introduction Widespread occurrence of phthalate ,acid esters, (PAEs) in the environment raises concerns about their toxicological effects on …

Neutralisation of acid effluent from steel manufacturing ...
Neutralisation of acid effluent from steel manufacturing ...

12/11/2019, · The method has proven to be effective to, remove iron, from an, iron and steel industry acidic, effluent containing a very high amount of iron and other metals using only the dust slag. The Fe 2+ in the effluent was oxidised to Fe 3+ and reacted with the OH − ions generated from the hydrolysis of the basic oxides in the slag to form an insoluble Fe(OH) 3 , removing the iron from the effluent in the form …

(PDF) Optimization of the coagulation/flocculation process ...
(PDF) Optimization of the coagulation/flocculation process ...

physicochemical treatment processes such as, coagulation/flocculation, are suitable methods to reduce colloidal materials., Coagulation, is the first step in this process of industrial wastewater, it...

Clean & environmentally friendly regeneration of Fe ...
Clean & environmentally friendly regeneration of Fe ...

The spent pickling solution, which comes from the pickling ,process, of ,iron, and ,steel,, is indispensable in the manufacturing ,industry,. ,Iron, gets dissolved in the ,acid, solution during the pickling ,process,. When the concentration of metal ions in the ,acid, solution accumulates to a certain value, it cannot to be

Wastewater sterilization: completely new method
Wastewater sterilization: completely new method "vortex ...

We have investigated the treatment effectiveness by using Magnetic Vortex Activator AVS-100 from two methods: I th method – sterilization of chromium-containing ,wastewater, by Cr 6+ up to Cr 3+ and using the reagent (sulfuric ,acid iron,); II th – combined ,neutralization, and treatment from the heavy metals ions of chromium-containing ,wastewater, and ,acid,-base ,wastewater,. The ,process, of chromium-containing ,waste, …

Heavy Metals Removal Industrial Wastewater Solutions
Heavy Metals Removal Industrial Wastewater Solutions

The treated water is then filtered by either pressure or gravity media filters depending on the logistics of the final disposal. The sludge from this process typically goes to a conventional thickener and filter press for dewatering prior to disposal. Dewatering produces an average 20:1 reduction in sludge volumes.

Fate of phthalate esters in municipal wastewater treatment ...
Fate of phthalate esters in municipal wastewater treatment ...

The fate and distribution of six phthalate ,esters, (PAEs) in a municipal ,wastewater, treatment plant (WWTP) employing an anaerobic/anoxic/oxic (A 2 /O) process were investigated. The process achieved relatively high removal efficiencies of PAEs in the range 55–97%.

Photodegradation Pathways of Typical Phthalic Acid Esters ...
Photodegradation Pathways of Typical Phthalic Acid Esters ...

Introduction. Phthalic ,acid esters, (PAEs), or phthalates, a chemical class of plasticizers, are widely used in plastic products. The consumption of PAE-containing products results in PAE release to water, the atmosphere, and the soil environment (Rastkari et al., 2018), and PAEs were detected everywhere.After an exploration of sources, Jiang suggested that the discharge of domestic ,wastewater, ...

Treatment of Organic Recalcitrant Contaminants in Wastewater
Treatment of Organic Recalcitrant Contaminants in Wastewater

31/3/2016, · Roslev et al. studied the degradation of four different phthalic ,acid esters, in an activated‐sludge process, and showed an almost 96% association of DEHP (showing the least biodegradation among the four phthalates) with the ,wastewater, suspended solids.

Heavy Metals Removal Industrial Wastewater Solutions
Heavy Metals Removal Industrial Wastewater Solutions

Heavy Metals ,Wastewater, Treatment System (Chrome Removal) Chromium is present in the wastewaters of a number of industries, including: stainless ,steel, manufacturing, protective coatings on metal, magnetic tapes, chrome plating, tanneries, textile dyes production, pigments and paint production, production of cement, paper, rubber, etc. Chromium is typically precipitated in two steps: reduction ...

Resource utilization of pickling wastewater (waste acid)
Resource utilization of pickling wastewater (waste acid)

The ,acid, pickling ,wastewater, (waste ,acid,) produced by ,steel, rolling, metal surface ,treatment, and heat ,treatment industry, is mainly hydrochloric ,acid wastewater, and sulfuric ,acid wastewater,. The impurities in the waste ,acid, are mainly Fe2 +, Fe3 +, and a small amount of zinc, copper and other heavy metal ions.

Pretreatment of industrial wastewater containing phthalate ...
Pretreatment of industrial wastewater containing phthalate ...

Esters, of phthalic ,acid, can be detected by IMS (ion mobility spectrometry). The six phthalates in the EPA`s Priority Pollutant List can be detected in both modes--positive as well as negative mode. In the positive mode, a characteristic reduced mobility was obtained for each phthalate; thus the different ,esters, can be distinguished, including the isomeric di-n-octyl- and di-2-ethylhexyl phthalate.

Health Effects Associated with Wastewater Treatment Reuse ...
Health Effects Associated with Wastewater Treatment Reuse ...

distribution and content of twelve phthalic ,acid esters, in various ,wastewater, streams from four textile dyeing treatment plants in the Guangdong region of China. The study results showed that the physicochemical and biochemical treatment processes were effective for the removal of phthalic ,acid esters,. In addition, the study

Industrial wastewater treatment - Wikipedia
Industrial wastewater treatment - Wikipedia

Industrial wastewater treatment, describes the processes used for treating ,wastewater, that is produced by industries as an undesirable by-product. After ,treatment,, the treated industrial ,wastewater, (or effluent) may be reused or released to a sanitary sewer or to a surface water in the environment.. Most industries produce some ,wastewater,.Recent trends have been to minimize such production or ...

Polyacrylamide for steel wastewater
Polyacrylamide for steel wastewater

The, treatment, of mine, acid wastewater, generally adopts the lime, neutralization, method., Iron and steel plant wastewater treatment, uses anionic polyacrylamide as a flocculant to, treat wastewater, produced in steel plants. Anionic polyacrylamide only needs to be used in industrial, wastewater treatment,.

Chapter 14 Waste Water from the Iron and Steel Industry ...
Chapter 14 Waste Water from the Iron and Steel Industry ...

1/1/1979, · The reclaimed oil and scum removed by the flotation tank can be combusted in an incinerator., Treatment, of, waste water, containing, acid and iron Waste water from, the, iron and steel industry and, from the, mining industry, can be treated by, neutralization, followed by a precipitation.

Treatment of oilfield wastewater by combined process of ...
Treatment of oilfield wastewater by combined process of ...

In this ,process,, operational conditions for the ,process, were as follows: aeration was 6 L/min, the mass ratio of ,iron,-carbon was 4:1, the addition of ,iron, was 1,500 mg/L, pH was 4, and reaction time was 30 min, the addition of H 2 O 2 (concentration is 30%) was 3 mg/L, pH was 4, and oxidation reaction time was 15 min. Coagulation and flocculation is the usual method for treating ,wastewater, to ...

Method 1658: The Determination of Phenoxy-Acid Herbicides ...
Method 1658: The Determination of Phenoxy-Acid Herbicides ...

Industrial ,Wastewater, 1. S COPE AND A PPLICATION 1.1 This method is designed to meet the survey requirements of the Environmental Protection Agency (EPA). It is used to determine (1) the phenoxy-,acid, herbicides and herbicide ,esters, associated with the Clean Water Act, the Resource Conservation and

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