Abstract
Metal pickling is a type of surface treatment, where the surface of the ferrous metals, copper, and aluminium alloys are treated with acidic media to get rid of inorganic contaminants, rust or scale formed. Hydrochloric acid and sulphuric acid are popularly used for this purpose. This causes the industry to produce highly acidic metal pickling effluent which cannot be disposed directly without treatment as it is hazardous. Hence, to treat this metal pickling effluent, three methods are used which are by using hydrating lime, soda ash and the distillation method. These three methods are discussed in detail in this paper to prove which is the most cost effective and efficient method for large scale as well as small scale industries.
Highlights
Metal pickling is a type of surface treatment, where the surface of the ferrous metals, copper, and aluminium alloys are treated with acidic media to get rid of inorganic contaminants, rust or scale formed
Pros and Cons of Pickling Effluent Treatment Agents solutions can be used for cleaning metal surfaces
This method is suggested to be employed [5] which shows that the calculated value is approaching saturation
Summary
2. Prolonged or repeated skin contact may cause dermatitis. 3. Prolonged or repeated eye contact with vapor/mist may. Metal pickling is a type of surface treatment, where the surface of the ferrous metals, copper, and aluminium alloys are treated with acidic media to get rid of inorganic contaminants, rust or scale formed. Various chemical solutions are usually used to clean these impurities. 4. Chronic occupational exposure to hydrochloric acid has been reported to cause gastritis, chronic bronchitis, dermatitis, and photosensitization in workers. Chronic occupational exposure to hydrochloric acid has been reported to cause gastritis, chronic bronchitis, dermatitis, and photosensitization in workers Strong acids, such as hydrochloric acid and sulfuric acid are common, but different applications use various other acids. Pros and Cons of Pickling Effluent Treatment Agents solutions can be used for cleaning metal surfaces. Solutions usually contain additives such as wetting agents and corrosion inhibitors.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
