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Proppant for fracturing fluid flowback

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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Proppant for fracturing fluid flowback
7 New and Emerging Analytical Techniques for the Detection ...
7 New and Emerging Analytical Techniques for the Detection ...

One approach to analyzing such compounds involves a reaction with 2,4-dinitrophenylhydrazine and subsequent HPLC analysis. A ,method, for GC analysis has been presented by Glaze and Weinberg (1997), who modified the ,method, by Yamada and Somiya for the analysis of C 1 to C 3 carbonyls in water. A

A Simple Water-Soluble ESIPT Fluorescent Probe for ...
A Simple Water-Soluble ESIPT Fluorescent Probe for ...

A new ,simple, and rapid reagent injection (FI) ,method, is reported for the simultaneous detn. of fluoride and monofluorophsphate (MFP) ions in toothpastes, using a single calibration for both analytes. The ,method, was based on the inhibitory effect of fluoride ions upon the Fe(III)-catalyzed oxidn. of 2,4-diaminophenol (DAP) by H2O2.

New Test Screens Wastewater Biosolids for Environmental ...
New Test Screens Wastewater Biosolids for Environmental ...

Simple,, inexpensive ,method, assesses environmental and agricultural effects of treated waste used as fertilizer Every year waste treatment facilities in the United States process more than eight million tons of semi-solid sewage called biosolids—about half of which is recycled into fertilizer and spread on crop land.

Water Quality Assessment of Surface and Groundwater ...
Water Quality Assessment of Surface and Groundwater ...

studied include pH, temperature, ,acidity,, total alkalinity, chloride content and total CO2. A Flame Atomic Absorption spectrophotometer was used to determine the concentrations of Ca, Mg, Cu, Cr, and Pb in the water samples. The total coliform was determined using the most probable number

Efficient Synthesis of α-FeOOH from Pickling Wastewater in ...
Efficient Synthesis of α-FeOOH from Pickling Wastewater in ...

An efficient way to synthesize α-FeOOH from pickling ,wastewater, in a falling film tower was proposed for the first time. This ,method, overcomes the shortcomings of the traditional air oxidation ,method,, and its production efficiency is increased by 16 times. The purity of α-FeOOH synthesized from pickling ,wastewater, can reach 96.3%, and the iron recovery rate is greater than 90%. At the same ...

LI WASTEWATER TREATMENT SYSTEM
LI WASTEWATER TREATMENT SYSTEM

hydrogen peroxide, may provide ,a simple,, effective and economical ,method, of destroying explosive-related contaminants ,of wastewater,, allowing for direct discharge of the treated effluent. This report explores the engineering parameters necessary for final design and construction of a photooxidative ,wastewater

LI WASTEWATER TREATMENT SYSTEM
LI WASTEWATER TREATMENT SYSTEM

hydrogen peroxide, may provide a simple, effective and economical method of destroying explosive-related contaminants of wastewater, allowing for direct discharge of the treated effluent. This report explores the engineering parameters necessary for final design and construction of …

Adsorption-extraction Technique can Track the Spread of ...
Adsorption-extraction Technique can Track the Spread of ...

‘Adsorption-extraction technique can be used as a quick, cost-effective method to detect COVID-19 and control the spread of the virus in waste water.’ Read More..

A SIMPLE METHOD FOR THE DETERMINATION OF NITRATE IN …
A SIMPLE METHOD FOR THE DETERMINATION OF NITRATE IN …

method,, but it needs sophisticated setup and equipment. The aim of the present work is to propose ,a simple, and unexpensive ,method,, based on cadmium copperized re-duction column that allows determining nitrate concen-tration in acidic solutions with high iron content. In this study, the ,method, was applied for the analysis of artifi-

Adsorption-extraction Technique can Track the Spread of ...
Adsorption-extraction Technique can Track the Spread of ...

‘Adsorption-extraction technique, can be used as a quick, cost-effective method to detect COVID-19 and control the spread of the virus in waste water.’ Read More..

Highly sensitive and selective detect of p-arsanilic acid ...
Highly sensitive and selective detect of p-arsanilic acid ...

first example of a MOF‐based sensor ,to detect, p‐ASA. BUC‐69 showed excel-lent chemical stability in solutions under pH ranging from 4 to 12, which makes it be a potential sensor both in ,acidity, and alkalinity condition. Signifi-cantly, BUC‐69 performed well in fluorescent sensing of p‐ASA at a low con-

(PDF) A new simple method for the enumeration of ...
(PDF) A new simple method for the enumeration of ...

Therefore, the areal cell density of AOB in domestic ,wastewater, biofilms on a partially submerged rotating biological contactor (RBC) was determined by fluorescent in situ hybridization (FISH ...

A SIMPLE METHOD FOR THE DETERMINATION OF NITRATE IN …
A SIMPLE METHOD FOR THE DETERMINATION OF NITRATE IN …

method,, but it needs sophisticated setup and equipment. The aim of the present work is to propose ,a simple, and unexpensive ,method,, based on cadmium copperized re-duction column that allows determining nitrate concen-tration in acidic solutions with high iron content. In this study, the ,method, was applied for the analysis of artifi-

Methods for Chemical Analysis of Water and Wastes
Methods for Chemical Analysis of Water and Wastes

----- METALS (Atomic Absorption Methods) 1 Scope and Application 1 1 Metals in solution may be readily determined by atomic absorption spectroscopy The ,method, is ,simple,, rapid, and applicable to a large number of metals in drinking, surface, and saline waters, and domestic and industrial wastes While drinking waters free of particulate matter may be analyzed directly, domestic and industrial wastes …

7 New and Emerging Analytical Techniques for the Detection ...
7 New and Emerging Analytical Techniques for the Detection ...

One approach to analyzing such compounds involves a reaction with 2,4-dinitrophenylhydrazine and subsequent HPLC analysis. A ,method, for GC analysis has been presented by Glaze and Weinberg (1997), who modified the ,method, by Yamada and Somiya for the analysis of C 1 to C 3 carbonyls in water. A

Using Spectrophotometers for Water and Wastewater Testing
Using Spectrophotometers for Water and Wastewater Testing

•A number of tests are very ,simple, and quick • e.g., chlorine, phosphate, sulfate, total hardness, nitrate • Many tests are easy, but may require a wait time or more prep steps • Some tests require a digestion, e.g. COD, TN, TP •Temperature tends not to interfere •Can test for all nutrients with one instrument

Various Methods for Removal Treatment and Detection of ...
Various Methods for Removal Treatment and Detection of ...

25/6/2020, · In order to remove ECs, a number of methods have been developed, which include, adsor,ption, membrane technology, biological treatment, and advanced oxidation process. In addition, advances in detection techniques and instrumentation are now able to detect ECs in which they occur at low concentrations.

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