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Hazardous Waste Regulations

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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Hazardous Waste Regulations
Copper Removal from Electroplating Wastewater by ...
Copper Removal from Electroplating Wastewater by ...

Both the electroplating process itself and the cleaning of the coating produce a considerable amount of waste. In particular, electroplating wastewater contains a wide range of copper compounds, in addition to Fe 3+, Zn 2+, Cd 2+, Ni 2+, Cr 3+, and many other heavy metal ions.

Resource utilization of pickling wastewater (waste acid)
Resource utilization of pickling wastewater (waste acid)

The acid pickling wastewater (waste acid) produced by steel rolling, metal surface treatment and heat treatment industry is mainly hydrochloric acid wastewater and sulfuric acid wastewater. The impurities in the waste acid are mainly Fe2 +, Fe3 +, and a small amount of zinc, copper and other heavy metal ions.

Selective Removal of Heavy Metal Ions from Waters and ...
Selective Removal of Heavy Metal Ions from Waters and ...

20/11/2011, · ,Copper, is present in all types of water, and its content is subject to large variations (Barceloux, 1999). The natural content of ,copper, in the river water ranges 0.9-20 μg/dm 3 and for saline waters 0.02-0.3 μg/dm 3. ,Copper, is an essential nutritional element being a vital part of several enzymes. It is one of the components of human blood.

Resource utilization of pickling wastewater (waste acid)
Resource utilization of pickling wastewater (waste acid)

The acid pickling wastewater (waste acid) produced by steel rolling, metal surface treatment and heat treatment industry is mainly hydrochloric acid wastewater and sulfuric acid wastewater. The impurities in the waste acid are mainly Fe2 +, Fe3 +, and a small amount of zinc, copper and other heavy metal ions.

Wastewater Treatment during PCB Fabrication Process | PSPCB
Wastewater Treatment during PCB Fabrication Process | PSPCB

(2) Cleaning: Before the PCB imaging, ,there, will be a pre-treatment process, which is to clean the ,copper, surface with a dilute sulfuric ,acid, solution and polish it with machines, in order to remove oxides. Organic ,wastewater, and sulfuric ,acid, mist gas get produced here.

Removal of Copper Ions from Acid Mine Drainage Wastewater ...
Removal of Copper Ions from Acid Mine Drainage Wastewater ...

Removal of ,Copper Ions From Acid Mine Drainage Wastewater Using, Ion Exchange Technique: Factorial Design Analysis. R. W. Gaikwad 1, R. S. Sapkal 2, V. S. Sapkal 2. Abstract.

Selective Removal of Heavy Metal Ions from Waters and ...
Selective Removal of Heavy Metal Ions from Waters and ...

20/11/2011, · ,Copper, is present in all types of water, and its content is subject to large variations (Barceloux, 1999). The natural content of ,copper, in the river water ranges 0.9-20 μg/dm 3 and for saline waters 0.02-0.3 μg/dm 3. ,Copper, is an essential nutritional element being a vital part of several enzymes. It is one of the components of human blood.

Removal of copper ions from wastewater by adsorption onto ...
Removal of copper ions from wastewater by adsorption onto ...

Removal of ,Copper Ions from Wastewater by Adsorption onto, a ,Green Adsorbent from Winemaking Wastes,. ... the surface of the AC was positively charged, so ,there, was electrostatic repulsion between the surface and the metal charge. When the pH increased ... “Ion exchange processes on weak ,acid, resins for ,wastewater, containing cooper ,ions, ...

Decomplexation of Electroplating Wastewater in a Higee ...
Decomplexation of Electroplating Wastewater in a Higee ...

The metal complexes ,wastewater, from electroplating industries is not as easy to be removed as metal ,ions,. In this work, the destruction of Cu, Ni and Cr complexes from electroplating by electro-oxidation was investigated. A novel higee electrochemical reactor with rotating mesh-disc electrodes was

Wastewater Treatment during PCB Fabrication Process | PSPCB
Wastewater Treatment during PCB Fabrication Process | PSPCB

(2) Cleaning: Before the PCB imaging, ,there, will be a pre-treatment process, which is to clean the ,copper, surface with a dilute sulfuric ,acid, solution and polish it with machines, in order to remove oxides. Organic ,wastewater, and sulfuric ,acid, mist gas get produced here.

Efficiently Removal of Copper and Cadmium from Wastewater ...
Efficiently Removal of Copper and Cadmium from Wastewater ...

The main aim of this study was to use the Moringa oleifera bark with low doses as an adsorbent for the maximum removal of ,copper, (Cu) and cadmium (Cd) from ,wastewater,. ,There, are some vital parameters which influence adsorption process such as contact time, adsorbent dose, initial concentration and pH were investigated.

Decomplexation of Electroplating Wastewater in a Higee ...
Decomplexation of Electroplating Wastewater in a Higee ...

The metal complexes ,wastewater, from electroplating industries is not as easy to be removed as metal ,ions,. In this work, the destruction of Cu, Ni and Cr complexes from electroplating by electro-oxidation was investigated. A novel higee electrochemical reactor with rotating mesh-disc electrodes was

Efficiently Removal of Copper and Cadmium from Wastewater ...
Efficiently Removal of Copper and Cadmium from Wastewater ...

The main aim of this study was to use the Moringa oleifera bark with low doses as an adsorbent for the maximum removal of ,copper, (Cu) and cadmium (Cd) from ,wastewater,. ,There, are some vital parameters which influence adsorption process such as contact time, adsorbent dose, initial concentration and pH were investigated.

Efficiently Removal of Copper and Cadmium from Wastewater ...
Efficiently Removal of Copper and Cadmium from Wastewater ...

The main aim of this study was to use the Moringa oleifera bark with low doses as an adsorbent for the maximum removal of ,copper, (Cu) and cadmium (Cd) from ,wastewater,. ,There, are some vital parameters which influence adsorption process such as contact time, adsorbent dose, initial concentration and pH were investigated.

Research on Treating Acid Wastewater Containing Heavy Metal
Research on Treating Acid Wastewater Containing Heavy Metal

sulfate and a large number of soluble heavy metal ions. Receiving water will be acidic and produce potential corrosion. Heavy metals such as zinc, copper, lead and thallium, etc. can be accumulated through food chain and result in chronic poisoning which is increasingly harmful to human being and environment [1-5].

Removal of Copper Ions from Acid Mine Drainage Wastewater ...
Removal of Copper Ions from Acid Mine Drainage Wastewater ...

cally feasible as a ,wastewater, treatment operation. Sev-eral adsorbents can be used to remove metal ,ions,, in-cluding activated carbons, alumina, silica, bentonite and peat. Yi et.al. [8-10] has also studied the removal of in-organic metal ,ions, namely cadmium, cobalt, zinc, silver, ,copper,, mercury, chromium and lead from aqueous solu-

Simultaneous bioremediation of cationic copper ions and ...
Simultaneous bioremediation of cationic copper ions and ...

11/2/2021, · F. vesiculosus dry biomass can be used as an effective and inexpensive biosorbent for the removal of MO and ,copper ions, from ,wastewater, effluents. References 1.

Copper Removal from Electroplating Wastewater by ...
Copper Removal from Electroplating Wastewater by ...

Both the electroplating process itself and the cleaning of the coating produce a considerable amount of waste. In particular, electroplating wastewater contains a wide range of copper compounds, in addition to Fe 3+, Zn 2+, Cd 2+, Ni 2+, Cr 3+, and many other heavy metal ions.

Simultaneous bioremediation of cationic copper ions and ...
Simultaneous bioremediation of cationic copper ions and ...

11/2/2021, · F. vesiculosus dry biomass can be used as an effective and inexpensive biosorbent for the removal of MO and ,copper ions, from ,wastewater, effluents. References 1.

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