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Different treatment methods of harmful substances in acid wastewater

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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Different treatment methods of harmful substances in acid wastewater
Green Processing and Synthesis - De Gruyter
Green Processing and Synthesis - De Gruyter

2.2 Experimental methods. Firstly, the raw material was heated via conventional ,coking, furnace at the temperature of 500 ° C for 2 h under inert gas to obtain the char. 8 g char and 32 g KOH were mixed with the mass ratio of 1:4.

Wet Air Oxidation of Aqueous Wastes | IntechOpen
Wet Air Oxidation of Aqueous Wastes | IntechOpen

21/10/2014, · They are typical, highly concentrated hardly biodegradable organic wastewaters. This oxidation took place in a 2 L high-pressure autoclave in batch mode. The initial COD concentration of the ,wastewater, was 48000 mg/L. ,After, 2 h of oxidation at 220°C with supply of oxygen 1.25 times more than its theoretical value, the COD was reduced by 86.4%.

Biochar-based materials and their applications in removal ...
Biochar-based materials and their applications in removal ...

3/4/2019, · Hence, BCs produced from industrial by-products and municipal wastes, such as ,coking wastewater, treatment sludge and press cake from anaerobic digestate, usually have high amounts of ash and nonorganic components (Table S1). Takaya et al. have noted that BCs with higher ash content would have higher phosphate adsorption capacities.

Treatment Technologies for Organic Wastewater | IntechOpen
Treatment Technologies for Organic Wastewater | IntechOpen

17/11/2011, · The advantages of the combined system are as follow: 1) the anaerobic process could get rid of the organic matters and suspended solid from the ,wastewater,, reduce the organic load of the aerobic degradation as well as the production of aerobic sludge, and finally reduce the volume of the reactors; 2) ,wastewater, pretreated by anaerobic technology is more stable, indicating that anaerobic process could reduce the load fluctuation of the ,wastewater,…

Sulfuric acid - Wikipedia
Sulfuric acid - Wikipedia

Sulfuric acid (American spelling) or sulphuric acid (Commonwealth spelling), also known as oil of vitriol, is a mineral acid composed of the elements sulfur, oxygen and hydrogen, with molecular formula H 2 SO 4.It is a colorless, odorless and viscous liquid that is miscible with water at all concentrations.

Energy-Efficient Green Catalysis: Supported Gold ...
Energy-Efficient Green Catalysis: Supported Gold ...

Next, 4 mL of 0.03 M lysine was added with vigorous stirring. To this suspension, 4 mL of 0.35 M NaBH 4 solution was added dropwise over 10 min. The mixture was left to stand for 24 h and then filtered, and the residue was washed with water and ethanol and dried at 80 …

Recent advances and prospects of catalytic advanced ...
Recent advances and prospects of catalytic advanced ...

At very ,acidic, condition (pH 2–3), the acidification of the solution using HCl generates much HClO·-from the reaction between Cl-and ·OH. As a result, the degradation efficiency is decreased due to the lower reactivity of HClO· - compared to ·OH (Nezamzadeh-Ejhieh and Khorsandi 2010a,b, Pourtaheri and Nezamzadeh-Ejhieh 2015).

Recent Applications of Electrocoagulation in Treatment of ...
Recent Applications of Electrocoagulation in Treatment of ...

The initial ,green, color of the ,wastewater, disappeared ,after, EC treatment and the effluent became more transparent. A very low OC value was achieved alongside high removal efficiency. Note that in Table 3 , C 10 - C 50 stands for C 10 -C 50 -hydrocarbons (indicators of raw oil-based hydrocarbons) [63].

TITANIUM ANODE | TITANIUM METAL
TITANIUM ANODE | TITANIUM METAL

Electrolytic oxidation or electrochemistry, in the process of treating water, including industrial water and factory ,wastewater,, the electrode not only plays a role in transmitting current, but also catalyzes the oxidative degradation of organic matter. In this process, since it does not cause pollution, Known as ,green, water treatment.

ACS ES&T Water | Ahead of Print
ACS ES&T Water | Ahead of Print

An Oxic–Hydrolytic–Oxic Process at the Nexus of Sludge Spatial Segmentation, Microbial Functionality, and Pollutants Removal in the Treatment of ,Coking Wastewater,. Chaohai Wei*, Zemin Li, Jianxin Pan, Bingbing Fu, Jingyue Wei, Ben Chen, Xingzhou Yang, Guojie Ye, Cong Wei, Pei Luo, Chaofei Wu, Guanglei Qiu, and ; Haizhen Wu

Ammonia - Wikipedia
Ammonia - Wikipedia

The company ACWA Power and the city of Neom have announced the construction of a ,green, hydrogen and ,ammonia, plant in 2020. ,Green ammonia, is considered as a potential fuel for future container ships. In 2020 the companies DSME and MAN Energy Solutions announced the construction of an ,ammonia,-based ship, DSME plans to commercialize it by 2025.

Recent advances and prospects of catalytic advanced ...
Recent advances and prospects of catalytic advanced ...

At very ,acidic, condition (pH 2–3), the acidification of the solution using HCl generates much HClO·-from the reaction between Cl-and ·OH. As a result, the degradation efficiency is decreased due to the lower reactivity of HClO· - compared to ·OH (Nezamzadeh-Ejhieh and Khorsandi 2010a,b, Pourtaheri and Nezamzadeh-Ejhieh 2015).

ACARP Abstract
ACARP Abstract

However the performance of greenwaste only was poorer with a pH of >4 reached ,after, 210 days, while the other treatments produced circum-neutral pH (~7) ,after, 120 days with the exception ,being, low levels of sewage only which produced a pH of ~6 ,after, 210 days.

Energy-Efficient Green Catalysis: Supported Gold ...
Energy-Efficient Green Catalysis: Supported Gold ...

Next, 4 mL of 0.03 M lysine was added with vigorous stirring. To this suspension, 4 mL of 0.35 M NaBH 4 solution was added dropwise over 10 min. The mixture was left to stand for 24 h and then filtered, and the residue was washed with water and ethanol and dried at 80 …

Waste Characterization Workshop - Michigan
Waste Characterization Workshop - Michigan

o ,Coking, • K005 - ,Wastewater, treatment sludge from the production of chrome ,green, ... • Wastes that are highly ,acidic, or highly basic • Wastes that can readily corrode or dissolve ... • EPA identified 40 toxic compounds and elements known to have leached into the groundwater ,after being, disposed of in landfills • Eight elemental ...

Green Processing and Synthesis - De Gruyter
Green Processing and Synthesis - De Gruyter

2.2 Experimental methods. Firstly, the raw material was heated via conventional ,coking, furnace at the temperature of 500 ° C for 2 h under inert gas to obtain the char. 8 g char and 32 g KOH were mixed with the mass ratio of 1:4.

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