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fracturing ceramic

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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fracturing ceramic
Conversion of ammonia to dinitrogen in wastewater by ...
Conversion of ammonia to dinitrogen in wastewater by ...

Because Nitrosomonas europaea contains ammonia-oxidizing enzyme, nitrite reductase, and nitrous oxide reductase, the conversion of ammonia to dinitrogen was tried with different reaction conditions. In aerobic reaction conditions, ammonium was converted to nitrite (NO 2 − ), while under oxygen-limiting or oxygen-free conditions, NO 2 − -N formed from ammonia oxidation by N. europaea was ...

Frontiers | Effect of Antibiotics on the Microbial ...
Frontiers | Effect of Antibiotics on the Microbial ...

For instance, Table 1 shows that antibiotic concentrations range from 0.046 to 4.552 μg/L in medical ,wastewater, and from 0 to 130.67 μg/L in livestock ,wastewater,. Tetracyclines, β-lactams, sulfonamides and quinolones are found in medical and livestock ,wastewater, ( Wei et al., 2011 ; Zhang and Li, 2018 ).

Calix seeks European targets; mulls divestment of three ...
Calix seeks European targets; mulls divestment of three ...

Calix, an Australian ,industrial technology, company, is actively scouting targets in Europe for its water and ,wastewater, business area, CEO Phil Hodgson said. The company, with a market cap of AUD 110m (USD 78m), welcomes advisory approaches that could introduce targets, especially as it is more difficult to find targets during the COVID-19 pandemic, given the travel restrictions, the CEO said.

Degradation of Malachite Green by Visible Light-Assisted ...
Degradation of Malachite Green by Visible Light-Assisted ...

wastewater, was put into the reactor, and then a certain amount of Na 2 SO 4 electrolyte and acid-base reagent were added. The air compressor was turned on to aerate the reactor and control the aeration volume through a rotor flow meter. Then, the cooling fan and xenon lamp were turned on, and the DC-

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