goldenwords all about new technology technologie

http://dx.doi.org/10.1016/j.jhazmat.2007.02.036

Abstract: The governance bit of an electrocoagulation (EC) organisation requires a careful think perspicacious the personalty of constant variables much as pH, underway spacing and operative time, and identify variables much as electrode touchable and unification mode. This essay presents the results of the communication of a textile waste by EC process. Two electrode materials, metal and iron, were adjoining in threesome modes namely, monopolar-parallel (MP-P), monopolar-serial (MP-S), and bipolar-serial (BP-S). COD and murkiness removals were designated as action criteria. For a broad COD removal, sour job is desirable for both electrode materials. For a broad murkiness removal, sour job is desirable for aluminum, and viewless job for iron. High underway spacing is approbatory for both removals in the housing of iron. In the metal case, the underway spacing exhibits a noticeable gist on COD removal, depending strongly on the unification mode, but it has a worthless gist on the murkiness removal. MP-P with shackle or MP-S with metal electrode are fit configurations in affectionateness with the coverall impact performance.

Moreover, impact frugalness is as essential as remotion efficiencies during the impact assessment task. Various candid and backhanded outlay items including electrical, sacrificial electrodes, labor, gook handling, fix and discourtesy costs hit been thoughtful in the computing of the amount cost. The results exhibit that MP-P fashion is the most cost-effective for both electrode types. Both electrodes exhibit kindred results in reaction COD and turbidity, but shackle is desirable as a baritone outlay material. Finally, a comparative think showed that EC was faster and more economic; exhausted inferior touchable and produced inferior sludge, and pH of the job was more stable than chemical coagulation (CC) for kindred COD and murkiness remotion levels. For CC, FeCl3 was the desirable briny in analyse of its techno-economic performance. On the another hand, shackle was the desirable electrode touchable in EC with MP-P grouping in empiric conditions much as, 30 A m−2 of underway spacing and 15 min of time, the communication outlay was $ 0.245 m−3. Consequently, the operative outlay of CC was 3.2 nowadays as broad as the operative outlay of EC.

Keywords: Textile wastewater; Electrocoagulation; Electrode connection; Electrode material; Economic analysis; Operating cost

by Mehmet Kobya 1, Mahmut Bayramoglu 2 and Murat Eyvaz 1
1. Department of Environmental Engineering, Gebze Institute of Technology, Gebze, Turkey
2. Department of Chemical Engineering, Gebze Institute of Technology, Gebze, Turkey

Journal of Hazardous Materials via Elsevier Science Direct www.ScienceDirect.com
Volume 148, Issues 1-2; Sept 5, 2007; Pages 311-318
http://dx.doi.org/10.1016/j.jhazmat.2007.02.036