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Removal of chromate and copper ions from electroplating 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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Removal of chromate and copper ions from electroplating wastewater
Application of Biosorption for Removal of Heavy Metals ...
Application of Biosorption for Removal of Heavy Metals ...

4/12/2017, · In another study, ,wastewater, having heavy metals and textile dyes was collected from the local metal, and the textile processing industry in Turkey was treated with Punica granatum L. peels. Under optimum experimental conditions the removal of Pb (II) was 98.07%. Simulated water ,containing, interfering ions also showed a removal efficiency of 98 ...

Professor Shizhang Qiao | Staff Directory
Professor Shizhang Qiao | Staff Directory

ARC Laurate Fellowship (2017-2022), FL170100154, Solar-driven Sustainable Production of Fuels and Chemicals, $2,683,730. ARC Dicovery project (2017-2019), DP170104464, Design of Photocatalysts for Solar Hydrogen Production, $410,500

Simultaneous removal of calcium fluoride nickel and ...
Simultaneous removal of calcium fluoride nickel and ...

As a typical hazardous heavy metal, ,nickel, (Ni 2+) mainly comes from the ,wastewater, produced by electroplating, ,nickel,-based alloy smelting, steel, ,battery, manufacturing, and other industries (Ma et al., 2019). Excessive Ni 2+ could destroy the structure and function of microbial proteins and inhibit microbial metabolism and growth (Rahman, 2020).

Effect of nickel ion doping in MnO2/reduced graphene oxide ...
Effect of nickel ion doping in MnO2/reduced graphene oxide ...

XRD pattern of ,nickel, loaded adsorbents remain similar, no peak of ,nickel, contents observed because it presents in very small amount but slight increase in peak intensity of ,nickel, loaded α-MnO 2 nanocomposites has been observed due to raise in size of nanorods and increase in crystallinity, gradually ,nickel, doping assists the fabrication of α-MnO 2 nanorods. 32 Another reason of increment ...

Removal of heavy metal ions from wastewaters: A review ...
Removal of heavy metal ions from wastewaters: A review ...

1/3/2011, · And kaolinite clay was used for removing metal ions from real ,wastewater containing, Pb(II), where its concentration was reduced from 160.00 mg/L to 8.00 mg/L. Agoubordea and Navia (2009) reported zinc and copper removal from aqueous solutions using brine sediments, sawdust and the mixture of both materials.

Int. J. Electrochem. Sci. 9 (2014) 3008 - 3021
Int. J. Electrochem. Sci. 9 (2014) 3008 - 3021

excellent catalyst in dealing with organic dye ,wastewater,. NiO is an important gas sensor material in recent years. It was used as formaldehyde, CO and H 2 sensors [8]. NiO was also a component in the ,Nickel,-iron ,battery,, also known as the Edison ,Battery,, and is a component in fuel cells [9]. On the other hand, ,nickel, hydroxide (Ni(OH) 2

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.. The acid in pure form is highly corrosive towards other materials, as it is an oxidant ...

Energy & Fuels | Vol 35 No 6 - American Chemical Society
Energy & Fuels | Vol 35 No 6 - American Chemical Society

Co 1 Al 2 (OH) m Layered Double Hydroxide/Graphitic Carbon Nitride Composite Nanostructure: An Efficient Water Oxidation ,Reaction, Electrocatalyst in an Alkaline Electrolyte. Tanmay Bhowmik, Ranjit Mishra, and ; Sudip Barman*

(PDF) Chemistry - Gilbert | Tín Phạm - Academia.edu
(PDF) Chemistry - Gilbert | Tín Phạm - Academia.edu

Academia.edu is a platform for academics to share research papers.

Sulfur - Wikipedia
Sulfur - Wikipedia

Sulfur, (in traditional lay Commonwealth English: sulphur) is a chemical element with the symbol S and atomic number 16. It is abundant, multivalent and nonmetallic.Under normal conditions, ,sulfur, atoms form cyclic octatomic molecules with a chemical formula S 8.Elemental ,sulfur, is a bright yellow, crystalline solid at room temperature. ,Sulfur, is the tenth most common element by mass in the ...

Overview Scheme for Nickel Removal and Recovery from Wastes
Overview Scheme for Nickel Removal and Recovery from Wastes

14.2.3 Problems Associated with ,Nickel,-,Containing, Wastes ,Nickel, occurs in sea water, petroleum, and coal at trace levels, and Ni2+ present in the environment can seep into plant and animal bodies. Minor quantities of Ni2+ serve as an activator of certain enzymes and have a ben - eficial effect on humans and other organisms (Peng et al. 2014).

A high-rate and long cycle life aqueous electrolyte ...
A high-rate and long cycle life aqueous electrolyte ...

23/10/2012, · Anhydrous Na 2 S 2 O 8 (oxidant; 6.61 g, 0.03 mol) was dissolved in 50 ml of cold (0 °C) water in a ,reaction, vessel ,containing, a magnetic stirring …

Nitric acid - Wikipedia
Nitric acid - Wikipedia

Nitric acid, is subject to thermal or light decomposition and for this reason it was often stored in brown glass bottles: . 4 HNO 3 → 2 H 2 O + 4 NO 2 + O 2. This ,reaction, may give rise to some non-negligible variations in the vapor pressure above the liquid because the nitrogen oxides produced dissolve partly or completely in the acid.

Handbook for Sampling and Sample Preservation of Water and ...
Handbook for Sampling and Sample Preservation of Water and ...

For example, if one desires to measure the flow of water/,wastewater, through a 30.4 cm (12 inch) pipe, take a 60.8 cm (2 foot) length of 30.4 (12 inch) pipe closed at one end, and fill it up with water/,wastewater containing, a known concentration of the radioactive tracer C to obtain mi Hi curies per cubic meter (gallon).

Sulfur - Wikipedia
Sulfur - Wikipedia

Sulfur, (in traditional lay Commonwealth English: sulphur) is a chemical element with the symbol S and atomic number 16. It is abundant, multivalent and nonmetallic.Under normal conditions, ,sulfur, atoms form cyclic octatomic molecules with a chemical formula S 8.Elemental ,sulfur, is a bright yellow, crystalline solid at room temperature. ,Sulfur, is the tenth most common element by mass in the ...

Utilization properties of jatropha de-oiled cake for ...
Utilization properties of jatropha de-oiled cake for ...

Several investigations have been undertaken for the removal of ,nickel, ions from ,wastewater, using different low-cost agricultural waste materials (Sud et al. 2008), such as hazelnut activated carbon (Volesky and Holan 1995), Cassia fistula biomass (Demirbas et al. 2002), sugarcane bagasse (Hanif et al. 2007), waste tea leaves, wheat straw (Ahluwalia and Goyal 2005b; Garg et al. 2009), black ...

Sustainable Li‐Ion Batteries: Chemistry and Recycling ...
Sustainable Li‐Ion Batteries: Chemistry and Recycling ...

The original “,battery, to ,battery,” process developed by Sumitomo Metal Mining (SMM) is targeting the recovery of electrode materials ,containing nickel,, cobalt, and metallic components on copper basis (Figure 5). It should be noted that several preconditioning steps are not described in the available literature sources.

Selectivity potential of ionic liquids for metal ...
Selectivity potential of ionic liquids for metal ...

five ,acidic, ionic liquids used for the leaching of the NiMH ,battery, slag. Fig. 2. Effect of leaching temperature and slag powder particle size on (a) La, (b) Ce, (c) Nd and (d) Y dissolution. Fig. 3. Comparison of leaching efficiency of La, Ce and Nd for particle size 63–90 μmat 80 °C. Table 2

Reversible Electrochemical Energy Storage Based on Zinc ...
Reversible Electrochemical Energy Storage Based on Zinc ...

The development of rechargeable Zinc-ion batteries (ZIBs) has been hindered by the lack of efficient cathode materials due to the strong binding of divalent zinc ions with the host lattice. Herein, we report a strategy that eliminates the participation of Zn2+ within the cathode chemistry. The approach involves the use of composite cathode materials that contain Zn halides (ZnCl2, ZnBr2, and ...

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