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Acid wastewater discharged from sulfuric acid plant

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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Acid wastewater discharged from sulfuric acid plant
Figuring Out Fracking Wastewater - C&EN
Figuring Out Fracking Wastewater - C&EN

Using thermal ionization mass spectrometry, Vengosh and coworkers showed that fracking ,flowback, water is characterized by distinctive isotope ratios ,of boron, and lithium and that these are much ...

Water Management for Hydraulic Fracturing in ...
Water Management for Hydraulic Fracturing in ...

Polymers in the ,flowback fluid, can be in different states of solution and have significantly different molecular weights from the polymers that were pumped downhole. In many cases, a breaking agent is used to reduce polymer viscosity, which promotes HF ,fluid, flow from the fracture and helps the proppant stay in place during ,flowback,.

Chemical Composition of Produced and Flowback Water ...
Chemical Composition of Produced and Flowback Water ...

Effect, of Pre-treatment on Wastewater Chemical Composition Step 1: wastewater as received Step 2: Oil removal Step 3: Micro filtration Step 4: Heat treatment Step 5: High temperature heat treatment Step 1 Step 2 Step 3 Step 4 Step 5 Cations (mg L-1) Sodium 4,488 4,471 4,483 4,500 4,766

Frac Water Reuse - Chemical Engineering | Page 1
Frac Water Reuse - Chemical Engineering | Page 1

Flowback, water. After a ,fracturing, treatment on a gas well, the pumping pressure is relieved and ,fracturing fluid,, mixed with water from the rock formation, begins to ,flow back, through the well casing to the wellhead. In treatment-and-,reuse, scenarios, this is the water that will serve as the basis for ,fracturing fluid, for the next job.

Overview of Chronic Oral Toxicity Values for Chemicals ...
Overview of Chronic Oral Toxicity Values for Chemicals ...

This study presents an overview of the chronic oral toxicity values—specifically, chronic oral reference values (RfVs) for noncancer effects, and oral slope factors (OSFs) for cancer—that are available for a list of 1173 chemicals that the United States (U.S.) Environmental Protection Agency (EPA) identified as being associated with hydraulic ,fracturing,, including 1076 chemicals used in hydraulic ,fracturing, fluids and 134 chemicals detected in ,flowback, …

Summary of the Technical Workshop on Analytical Chemical ...
Summary of the Technical Workshop on Analytical Chemical ...

Boron, isotopes (δ11 B, normalized to SRM-951 standard) versus 87Sr/86Sr ratios measured in ,flowback, and produced water from the Marcellus brines (red circles) as compared to produced water from conventional oil and gas wells including the Upper

Ecologix - Recycling Flowback and Produced Water for Fracking
Ecologix - Recycling Flowback and Produced Water for Fracking

same way, however, their introduction to the mix has a negative ,effect, in the fracking context. A very low concentration of guar gum and polyacrylamide help carry the proppant into the stimulated fractures. Even the smallest amount of colloidal solids present in the ,fluid, will create unwanted friction and negate the ,effect, of the chemicals.

Shales Leaching Modelling for Prediction of Flowback Fluid ...
Shales Leaching Modelling for Prediction of Flowback Fluid ...

Flowback fluid, differs significantly from the ,fracturing fluid,, as it contains suspended fine rocks as a result of the leaching process, reservoir water, drilling muds, and also various chemical substances, such as dissolved solids (e.g., chlorides, sulfates, etc., measured as total dissolved solids or TDS), suspended solid particles (TSS), bacteria, metals (e.g., calcium, magnesium, barium, strontium), iron compounds, …

Water | Free Full-Text | Treatment of Produced Water in ...
Water | Free Full-Text | Treatment of Produced Water in ...

These treatment technologies were demonstrated to be effective for the removal of suspended constituents and iron, and to produce a clean brine for onsite ,reuse,, such as hydraulic ,fracturing,. Produced water is the largest volume of waste product generated during …

Ecologix - Recycling Flowback and Produced Water for Fracking
Ecologix - Recycling Flowback and Produced Water for Fracking

same way, however, their introduction to the mix has a negative ,effect, in the fracking context. A very low concentration of guar gum and polyacrylamide help carry the proppant into the stimulated fractures. Even the smallest amount of colloidal solids present in the ,fluid, will create unwanted friction and negate the ,effect, of the chemicals.

Journal of Environmental Analytical Chemistry
Journal of Environmental Analytical Chemistry

called “,flowback, water” if it is brought from ,fluid, injected into the well or reservoir at high pressure as part of a hydraulic ,fracturing, (frac) operation [3]. It is slightly acidic and sits below the hydrocarbons in porous reservoir media extraction of oil and gas leads to a reduction in

TREATMENT AND REUSE OF OILFIELD PRODUCED WATER - Li …
TREATMENT AND REUSE OF OILFIELD PRODUCED WATER - Li …

Also optionally, the ,fracturing fluid, can contain materials designed to limit proppant ,flowback, after the ,fracturing, operation is complete by forming a porous pack in the fracture zone. Such materials can be any known in the art, such as fibers, such as glass fibers, available from Schlumberger under the trade name PropNET™ (for example see U.S. Pat. No. 5,501,275).

Shales Leaching Modelling for Prediction of Flowback Fluid ...
Shales Leaching Modelling for Prediction of Flowback Fluid ...

Flowback fluid, differs significantly from the ,fracturing fluid,, as it contains suspended fine rocks as a result of the leaching process, reservoir water, drilling muds, and also various chemical substances, such as dissolved solids (e.g., chlorides, sulfates, etc., measured as total dissolved solids or TDS), suspended solid particles (TSS), bacteria, metals (e.g., calcium, magnesium, barium, strontium), iron compounds, …

Method of Reusing Untreated Produced Water in Hydraulic ...
Method of Reusing Untreated Produced Water in Hydraulic ...

It can be a component of “,flowback,” although an exact description of ,flowback, is elusive—in the typical case where fresh water is injected during ,fracturing, operations, it is generally observed that less than 35% of the injected ,fluid, returns to surface when the well is put on production, and that the water is considerably more saline than it was on initial injection.

Frontiers | Emerging Trends in Biological Treatment of ...
Frontiers | Emerging Trends in Biological Treatment of ...

Limited freshwater resources and stringent disposal regulations have provided impetus for FPW ,reuse,. Organic and inorganic compounds released from the shale/brine formation, microbial activity, and residual chemicals added during hydraulic ,fracturing, bestow a unique as well as temporally varying chemical composition to this wastewater.

FIGURING OUT FRACKING
FIGURING OUT FRACKING

oil and gas extraction method known as hydraulic ,fracturing,, ... factants to form fracking ,fluid,, which is used to optimize the amount of fuel ... The ,flowback, and produced water together make up

TREATMENT AND REUSE OF OILFIELD PRODUCED WATER - Li …
TREATMENT AND REUSE OF OILFIELD PRODUCED WATER - Li …

Also optionally, the ,fracturing fluid, can contain materials designed to limit proppant ,flowback, after the ,fracturing, operation is complete by forming a porous pack in the fracture zone. Such materials can be any known in the art, such as fibers, such as glass fibers, available from Schlumberger under the trade name PropNET™ (for example see U.S. Pat. No. 5,501,275).

Summary of the Technical Workshop on Analytical Chemical ...
Summary of the Technical Workshop on Analytical Chemical ...

Boron, isotopes (δ11 B, normalized to SRM-951 standard) versus 87Sr/86Sr ratios measured in ,flowback, and produced water from the Marcellus brines (red circles) as compared to produced water from conventional oil and gas wells including the Upper

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