Recovery of Metals from Sludges and Wastewaters (Pollution by E.R. Krishnan

By E.R. Krishnan

Cutting-edge metals therapy and restoration applied sciences to help in opting for waste administration techniques.

Show description

Read Online or Download Recovery of Metals from Sludges and Wastewaters (Pollution Technology Review) (No. 207) PDF

Best industrial technology books

Sustainability in the Process Industry: Integration and Optimization (Green Manufacturing & Systems Engineering)

Increase the strength potency of procedure practices Sustainability within the technique explains strategy integration and optimization and discusses purposes for making improvements to the strength and water potency of commercial in addition to nonindustrial power clients. ways for adapting those methodologies to incorporate the mixing of waste and renewable power assets are lined.

Industrial Evolution in Developing Countries: Micro Patterns of Turnover, Productivity, and Market Structure

This ebook examines the micro techniques taken with the commercial zone of constructing international locations whilst new manufacturers input the marketplace and present ones go out whereas, at the same time, industry stocks shift between manufacturers who range of their know-how, managerial services, and profitability.

Handbook of Flexible Manufacturing Systems

This instruction manual is a compilation of the present useful wisdom of versatile production structures (FMS). FMS let production vegetation of all sizes to minimize their stock whereas expanding their skill to fulfill buyer calls for. by way of controlling automated guided autos, robots, and laptop instruments with one valuable laptop, items can now be produced in a number of types and versions all while.

Implementation of Robot Systems: An introduction to robotics, automation, and successful systems integration in manufacturing

In keeping with the author’s wide-ranging adventure as a robotic consumer, provider and advisor, Implementation of robotic structures will assist you to strategy using robots on your plant or facility armed with the precise wisdom base and expertise of serious elements take into consideration. This booklet starts off with the fundamentals of average functions and robotic features sooner than masking all phases of winning robotic integration.

Additional resources for Recovery of Metals from Sludges and Wastewaters (Pollution Technology Review) (No. 207)

Example text

Anganese, nickel, lead, and 9 zinc. Because this type of precipitation IS widely used in industry. considerable data are available concerning ItS performance. Table 18 presents data on the effectiveness of hydroxide precipitation in the removal of soluble metal ions in commercial operations. Sulfide precipitation is effective in the ~val of cadmium, cobalt, copper, iron. mercury, manganese, nickel. er. tIn. and zinc. 9 Table 19 presents full-scale performance data for ~ulfide precipitation. Carbonate precipitation has bein cited as being effective in the removal of cadmium, lead.

Ay then be processed further for metals recovery. Typical chemicals often used to precipitate metals for aqueous streimS include caustic soda, lime. sodiu. sulfide. ferrous sulfide, soda ash, phosphoric acid/sodiu. phosphate, and sodium borohydr1de. Because wastewaters containing comp1exed metals may not be effectively treated by such chemical additions. the use of reducing agents may be reqUired for their precipitation fra- the water matrix. The reduction process involves the transfer of electrons to the chemical being reduced (reductant) from the che-ica1 initiating the transfer (the reducing agent).

The heart of all these systems Is the plasma torch, which consists of a closely spaced pair of electrodes Installed In a furnace to produce an electrical arc. A process gas Is Injected into the space between the electrodes. This gas can be Inert, oxidizing, or reducing In nature. , carbon monoxide, water).!! The product collection system can consist of a condenser or a combination condenser and baghouse. A high-temperature flUid-wall reactor uses radiative heat to pyrolyze waste components and causes them to fona elements or simple compounds.

Download PDF sample

Rated 4.89 of 5 – based on 34 votes