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Bactericide for 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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Bactericide for fracturing flowback fluid
Treatment of Combined Acid Black 48 and Coffee Wastewater ...
Treatment of Combined Acid Black 48 and Coffee Wastewater ...

2013). Discharge of ,dye wastewater, from industries can pollute surface water streams. If the ,dye waste-water, is not treated properly before releasing to the environment, the effluent from these industries can cause determental effect onquality of receiving wa-ters in terms of ,pH,, total suspended solids (TSS), total

Removal of Acid Orange 7 dye from aqueous solutions by ...
Removal of Acid Orange 7 dye from aqueous solutions by ...

25/5/2017, · RESULTS: Results showed that efficiency ,of Acid, Orange 7 ,dye, removal is higher in acidic ,pH, and higher adsorbent dosage. The highest efficiency ,of Acid, Orange 7 ,dye, removal was 98.41% by raw tea residue absorbent at ,pH, 2, reaction time was 120 minutes and initial concentration of ,dye, was 50 mg/l, which was obtained at adsorbent dosage of 10 g/l.

Hybrid System of Flocculation–Photocatalysis for the ...
Hybrid System of Flocculation–Photocatalysis for the ...

2.1.2. Effect of ,pH, on ,Dye, Removal Efficiency. Flocculation performance of PAC was often affected by ,pH, for the treatment of various industrial ,wastewater, samples, including textile dyeing ,wastewater, and dairy ,wastewater,.20,21 In this study, the effect of ,pH, on ,dye, removal efficiency was investigated in treating simulative ,dye wastewater, ...

Removal of acid dyes from aqueous solutions using orange ...
Removal of acid dyes from aqueous solutions using orange ...

Nylomine red Red ,Acid, 510.5 ICI The ,dye, solutions were prepared by dissolving the different dyes in distilled water at desired concentrations. 2.2 Sorption studies 2.2.1 Sorption kinetics The initial solution ,dye, concentration was 100 mg/L for all experiments except for that carried out to examine the effect of the initial concentration of dyes.

Treatment of Combined Acid Black 48 and Coffee Wastewater ...
Treatment of Combined Acid Black 48 and Coffee Wastewater ...

2013). Discharge of ,dye wastewater, from industries can pollute surface water streams. If the ,dye waste-water, is not treated properly before releasing to the environment, the effluent from these industries can cause determental effect onquality of receiving wa-ters in terms of ,pH,, total suspended solids (TSS), total

Frontiers | Degradation of Azo Dye (Acid Orange 7) in a ...
Frontiers | Degradation of Azo Dye (Acid Orange 7) in a ...

The ,pH, of the anode solution was adjusted to 7. ,pH, and ionic strength were measured using a calibrated benchtop combined ,pH, and ionic strength meter (,pH,/CON 700 meter, Cole-Parmer, UK). The concentration ,of Acid, orange 7 ,dye, used was 100 mg L −1. Three MFC systems were setup.

Hybrid System of Flocculation–Photocatalysis for the ...
Hybrid System of Flocculation–Photocatalysis for the ...

2.1.2. Effect of ,pH, on ,Dye, Removal Efficiency. Flocculation performance of PAC was often affected by ,pH, for the treatment of various industrial ,wastewater, samples, including textile dyeing ,wastewater, and dairy ,wastewater,.20,21 In this study, the effect of ,pH, on ,dye, removal efficiency was investigated in treating simulative ,dye wastewater, ...

Cellulose-based membrane for adsorption of dye in batik ...
Cellulose-based membrane for adsorption of dye in batik ...

grafting acrylic ,acid, (CA) and was able to adsorb Methyl Orange, Disperse Blue 2BLN and malachite green chloride reached to 84.2% (at ,pH, <4, 50°C), 79.6% (at ,pH, 7, 50°C) and 99.9% (at ,pH,>9, 50°C), respectively. The surface area of CMC-CA adsorbent was 594.45 m2/g, with micropore volume and average pore diameter of 0.093

Relevance of Toxicity Assessment in Wastewater Treatments ...
Relevance of Toxicity Assessment in Wastewater Treatments ...

For the heterogeneous process, Fe-zeolite Y prepared as previously described was used at the optimized conditions set in our previous study and as follows: initial dye concentration of 50 ppm, concentration of H 2 O 2 8.7 mM, temperature 80°C, and initial pH value close to 5.96 (natural pH of the solution).

Adsorption of Acid Dyes from Wastewater on Saudi Bentonite ...
Adsorption of Acid Dyes from Wastewater on Saudi Bentonite ...

The formation of positive sites on the clay results from the presence of alumina but the adsorption ,of acid dye, will be ,low, because of the small number of positive sites. Equilibrium study Adsorption equilibrium: The adsorption process reached the equilibrium within 4 h, therefore, the equilibrium experiments were carried at least for 5 h to insure that the equilibrium state was attained.

Agricultural wastes as a low cost adsorbents for the ...
Agricultural wastes as a low cost adsorbents for the ...

Agricultural wastes as a ,low, cost adsorbents for the removal ,of Acid, Blue 92 ,dye,: A Comparative study with Commercial activated carbon. IOSR Journal of Agriculture and Veterinary Science (IOSR-JAVS) e-ISSN: 2319-2380, p-ISSN: 2319-2372.Volume 7, Issue 2 Ver. III (Mar-Apr. 2014), PP 19-32 www.iosrjournals.org.

Direct and Indirect Electrochemical Degradation of Acid ...
Direct and Indirect Electrochemical Degradation of Acid ...

The anthraquinone ,dye,, C.I. ,Acid, Blue 111, was subjected to electrochemical oxidation using an IrOx electrode and sodium sulphate or sodium chloride as electrolytes. The effects of different operating parameters on the rate of ,dye, decolorization, such as applied current, electrolyte concentration, and initial ,pH, were studied.

Biosorptive Decontamination of Acid Red-87 Dye from ...
Biosorptive Decontamination of Acid Red-87 Dye from ...

function of lemon peel [23], as ,low, cost adsorbent to remove the Trypan Blue ,dye, from aqueous solution [24]. In continuation of our previous effort, in present work, Citrus limonum peels have been investigated to remove another important anionic ,dye, (,Acid, Red-87 ,dye,) from aqueous media. The structure of ,dye, molecule is shown in Fig. 1. Figure 1.

Role of pH in the Aqueous Phase Reactivity of Zerovalent ...
Role of pH in the Aqueous Phase Reactivity of Zerovalent ...

In a previous paper , we investigated the degradation of the azo ,dye Acid, Orange 7 (AO7, Scheme 1) by two RNIP suspensions commercialized at ,pH, values around 12. Those experiments were run in slightly basic conditions, as obtained after adding RNIP to a water solution of 0.67 mM AO7 (the latter having a natural ,pH, equal to 6.8, i.e., close to neutrality).

Removal of Dyes from Textile Industrial Wastewater using ...
Removal of Dyes from Textile Industrial Wastewater using ...

Wastewater, containing dyes is very difficult to treat, since the dyes are recalcitrant organic molecules, resistant to aerobic digestion, and are stable to light, heat and oxidizing agents due to their structure and molecular size. Due to ,low, biodegradation of ,dye,, a convectional biological treatment process is not

Hybrid System of Flocculation–Photocatalysis for the ...
Hybrid System of Flocculation–Photocatalysis for the ...

2.1.2. Effect of ,pH, on ,Dye, Removal Efficiency. Flocculation performance of PAC was often affected by ,pH, for the treatment of various industrial ,wastewater, samples, including textile dyeing ,wastewater, and dairy ,wastewater,.20,21 In this study, the effect of ,pH, on ,dye, removal efficiency was investigated in treating simulative ,dye wastewater, ...

Direct and Indirect Electrochemical Degradation of Acid ...
Direct and Indirect Electrochemical Degradation of Acid ...

The anthraquinone ,dye,, C.I. ,Acid, Blue 111, was subjected to electrochemical oxidation using an IrOx electrode and sodium sulphate or sodium chloride as electrolytes. The effects of different operating parameters on the rate of ,dye, decolorization, such as applied current, electrolyte concentration, and initial ,pH, were studied.

Adsorption of Acid Dyes from Wastewater on Saudi Bentonite ...
Adsorption of Acid Dyes from Wastewater on Saudi Bentonite ...

The formation of positive sites on the clay results from the presence of alumina but the adsorption ,of acid dye, will be ,low, because of the small number of positive sites. Equilibrium study Adsorption equilibrium: The adsorption process reached the equilibrium within 4 h, therefore, the equilibrium experiments were carried at least for 5 h to insure that the equilibrium state was attained.

Frontiers | Degradation of Azo Dye (Acid Orange 7) in a ...
Frontiers | Degradation of Azo Dye (Acid Orange 7) in a ...

The ,pH, of the anode solution was adjusted to 7. ,pH, and ionic strength were measured using a calibrated benchtop combined ,pH, and ionic strength meter (,pH,/CON 700 meter, Cole-Parmer, UK). The concentration ,of Acid, orange 7 ,dye, used was 100 mg L −1. Three MFC systems were setup.

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