Treatment of Electroplating Wastewater by Adsorption Technique
Abstract—The wastewater treatment process was evaluated in an Electroplating unit that practiced chrome and bronze plating. With a view to recycle and reuse the wastewater, adsorption process was adopted as single stage treatment instead of the existing chemical methods. Wastewater was collected from chrome and bronze plating
treatment of electroplating wastes. In the paper, the typical electroplating processes appropriate to local factories as well as the general characteristics and volume of the plating wastewater are discussed. The various practical measures that can reduce pollutant discharge and some methods of treatment of elec-
New treatment of real electroplating wastewater containing
Thus, the removal of heavy metals from electroplating wastewater is a matter of paramount importance (Liu et al., 2013). There are many physical, chemical, and biological methods currently being used for electroplating wastewater treatment: chemical precipitation, coagulation–flocculation, ion exchange, etc.
Electroplating wastewater comes from surface plating operations where the metal is dipped in an electroplating solution of various types of metals and then rinsed. Typical plating includes brass, nickel, cadmium, zinc, silver, copper, and gold.
Electroplating Wastewater Treatment using Halotolerant
The acclimation of iron-oxidizing halotolerant bacteria has been studied to treat electroplating wastewater containing ferrous ions and a high concentration of chlorine ions. Iron-oxidizing bacteria that are halotolerant and able to oxidize Fe 2+ to Fe 3+ were obtained from the activated sludge of a steel works coke-oven wastewater treatment plant.
Treatment of an industrial wastewater. To validate the suitability of electrocoagulation for the treatment of industrial wastewater, an electrolysis was carried, using a wastewater sample, collected from an electroplating unit and the residual concentrations of Cu 2+, Zn 2+ and Cr(VI) together with COD were measured at different times of
Electroplating Effluent Treatment Plant - Electroplating
Electroplating Effluent Treatment Plant. Typical plating includes brass, nickel, cadmium, zinc, silver, copper, and gold. Electroplating wastewater is typically from washing, rinsing and batch dumps and is at a low pH of ~3-5 and contains soluble forms of the various metals.
Creosote Wastewater Treatment Sludge The wastewater treatment sludges that remain after biological treatments are also hazardous. The carcinogenic constituents of creosote, namely benzo(a)anthracene, benzo(b)fluoranthene, and benzo(a)pyrene, are specifically likely to be present in the treatment sludge since these constituents absorb to
Blog: Ultrafiltration and Precipitation: The Most
Electroplating, electroless nickel plating, metal-forming operations, battery recycling and other such operations all generate wastewater containing soluble heavy metal ions. Ultrafiltration and precipitation are the most effective methods for removing these metal ions. Both help manufacturers avoid the costly consequences of non-treatment, that can include corrosion to systems, toxic
Highlights A large-scale study on trace element levels in marine wild fish from Chinese waters. Spatial variation found for Al, As, Cd, Cr, Fe, Ni, Pb, but not for Ag, Cu, Mo, Se and Zn. The Pearl River Estuary contained the highest concentrations of Al, Cr, Ni, and Pb. No biomagnification occurred for any of the trace elements studied in marine fish. No obvious health risk from the intake of
Laboratory News from Lab Bulletin
Wastewater analysis in treatment plants – critical parameters and how to measure them Dec 17, 2025 Operators of wastewater treatment plants depend on reliable methods to monitor plant performance. Metrohm is pleased to present a collection of standardized methods (ISO, DIN, EPA) for critical parameters ranging from chemical oxygen demand (COD
For industrial sewage treatment, it is widely used in iron and steel plants, wastewater plants, electroplating wastewater plants, metallurgical waste water plants, and coal-washing wastewater plants. Owing to the significantly high flocculation efficiency, anionic polyacrylamide is also widely used in drinking water treatment.
- Can nonionic polyacrylamide be used as a gel fracturing fluid?
- Nonionic polyacrylamide (NPAM) with controlled molecular weight was successfully synthesized as a gel fracturing fluid by aqueous solution polymerization.
- What is nonionic polyacrylamide (NPAM) gel?
- Nonionic polyacrylamide (NPAM) gel was prepared for in-depth profile control. A compact three dimensional network structure was formed in the bulk gel system. Retention, adsorption and bridging across the pore throats occur in high permeability zones. The NPAM gel shows superior high temperature resistant. °C.
- Can phenolic resin cross-linked NPAM gel be used for water production control?
- Conclusions In this work, a phenolic resin cross-linked NPAM gel was selected as an in-depth profile control agent for water production control. The gelation time and gel strength of the NPAM gel can be controlled by adjusting the NAPM polymer or cross-linker concentration.
- Are bulk gels based on NPAM suitable for profile control technology?
- However, no systematic study has been done for the gelation performance and microstructure of bulk gels under hydrated conditions and in porous media. So in this research, we focused on the gels based on NPAM for in-depth profile control technology.
