The Use of as Natural Coagulant in Algerian Drinking Water Treatment Plant

The purpose of this work is the study ability plant material Aloe vera to act as natural coagulant using raw water obtained from a drinking treatment (Mila, Algeria). Different solvents such as: NaCl; NaOH and HCl were used chemical activators extract active components plant, different coagulation-flocculation experiments conducted in jar test apparatus evaluate performance extracted coagulant. Also, effect dose on some parameters turbidity, pH, total alkalinity organic matter investigated. results showed that use coagulants by increases coagulation efficiency compared material, for example maximum turbidity removal was 28.23, 78.07, 83.46 85.15% when powdered (raw material), AV-NaCl (0.5 M), AV-NaOH (0.05 M) AV-HCl respectively. defined, residual work, where (after solvents) produced lower than Algerian standard (5 NTU) with initial (13 NTU). In study, infrared spectrum analysis has revealed presence functional groups, which are responsible process.