Assessing the effectiveness flocculation water fishery by some flocculation auxiliaries extracts from plants

Abstract

This study applied one chemical coagulant, PAC, and three biological coagulant aids include Moringa seed gum, Cassia seed gums and polymer. The results indicated that the best dose of PAC be used as coagulants was 480 mg/L. Using polymer as aids with PAC could remove 66.70 % of COD, 66.86 % of SS, 39.01 % of color from studied wastewater. Using Moringa seed gums as aids with PAC could remove 69.34 % of COD and, 69.61 % of SS, 36.25 % of color from studied wastewater. Similarly, using Cassia seed gums as aids with PAC could remove 70.54 % of COD, 68.34 % of SS and 35.94 % of color from fish blood. These results, showed natural products such as Moringa seed gums or Cassia seed gums would be efficient workable substitutes for synthetic chemical polymer.

Nghiên Cứu Khả Năng Xử Lí Màu Nhuộm Hoạt Tính Reactive Blue 220 Bằng Gum Trích Li Từ Hạt Me

“…Compared with chemical coagulants such as alum (aluminum sulfate), alkaline iron (ferric sulfate), PAC (poly aluminum chloride), biological coagulants are polymeric safe, biodegradable, and the biggest advantage is no secondary pollution. In Vietnam, there are many seeds of plants that can be used to produce eco-friendly coagulant (gum) such as Cassia fistula and county moringa oleifera for the treatment of seafood and textile wastewater (Dao, Bui, Ngo, & Nguyen, 2016;Dao Tran, Nguyen, Ngo, & Nguyen, 2017). Worldwide, there are studies about types of gums such as guar gum, xanthan gum for processing dye Congo red (Ghorai, Sarkar, Panda, & Pal, 2013;Gupta, Agarwal, Ahmad, Mirza, & Mittal, 2020).…”