... Automation of Water and Wastewater Treatment and Transport Syst., July 6–9, Brighton, England, 37, 12, 111–119. Elsevier Science Ltd.,Exeter, England.Chuang, C. J. and K. Y. Li (1997). Effect of coagulant ... Technol. 13, 2, Apr. 15,1998, 161 169 .Al-Malack, M. H., N. S. Abuzaid, and A. H. El-Mubarak (1999). Coagulation of polymeric wastewater discharged by a chemical factory. Water Research. 33, 2, 521–529. ... in theactual operation of the plant. See Figure 12.5 for a picture of a jar testing apparatus.12.5 CHEMICAL REACTIONS OF ALUMThe alum used in water and wastewater treatment is Al2(SO4)3...