Welcome to the company ! we have many years of professional experience !
rsdzd@pyzyrsd.com +86 513525609655

The industrial wastewater with pH 4 is acidic

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.

Certificate of Honor

Get in touch with us

We will confidentially process your data and will not pass it on to a third party.

The industrial wastewater with pH 4 is acidic
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.

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.

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.

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 Technologies in Wastewater Treatment | IWA Publishing
Removal Technologies in Wastewater Treatment | IWA Publishing

Additionally, co-precipitation is also an adsorptive phenomenon in the removal process. Heavy metals can co-precipitate with secondary minerals in wastewater. Copper, nickel, zinc, manganese etc. are co-precipitated in Fe oxides and cobalt, iron, nickel and zinc are co-precipitated in manganese oxides (Stumm and Morgan, 1981; Noller et al., 1994).

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].

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.

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 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.

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.

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

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-

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.

Determination of Trace Metals in Waste Water and Their ...
Determination of Trace Metals in Waste Water and Their ...

9/3/2012, · Copper is most frequently separated by cementation along with noble metals such as Ag, Au and Pb as well as As, Cd, Ga, Pb, Sb and Sn can be recovered in this manner. Reverse osmosis and electro-dialysis involves the use of semi-permeable membranes for the recovery of …

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.

Chat Online Inquiry Email

Business cooperation

+86 513525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City