RECOVERY OF CHLORINATED SOLVENT TRICHLOROETHYLENE CONTAMINATED GROUNDWATER USING A HYBRID TREATMENT SYSTEM

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KAO C.M.

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Journal Paper

Paper Information

Journal: INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST) Year:2014 | Volume:11 | Issue:1 Page(s): 149-158

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Title

RECOVERY OF CHLORINATED SOLVENT TRICHLOROETHYLENE CONTAMINATED GROUNDWATER USING A HYBRID TREATMENT SYSTEM

Author(s)

KAO C.M.

Keywords

FIBER-BALL FILTRATION

GROUNDWATER TREATMENT

MEMBRANE

NANOFILTRATION

TRICHLOROETHYLENE

Abstract

In this laboratory pilot-scale study, a hybrid treatment system has been developed to remove chlorinated solvent TRICHLOROETHYLENE and fine particles from chlorinated solvent TRICHLOROETHYLENE-contaminated groundwater before it is applied for further recovery. The two-stage system contained FIBER-BALL FILTRATION followed by NANOFILTRATION MEMBRANE processes. The measured chlorinated solvent TRICHLOROETHYLENE and suspended solids of the tested groundwater were 850 mg/L and 1,052 mg/L, respectively. Up to 97.3% of chlorinated solvent TRICHLOROETHYLENE and 99.9% of SS could be removed by the hybrid system with an operational pressure of 4.1 kg/cm2. The chlorinated solvent TRICHLOROETHYLENE removal mechanism in the FIBER-BALL FILTRATION process could be due to adsorption. Approximately 98.2 and 78.6% of chlorinated solvent TRICHLOROETHYLENE rejection was observed when NANOFILTRATION MEMBRANE was used for chlorinated solvent TRICHLOROETHYLENE removal with the recover rate of 80% and initial chlorinated solvent TRICHLOROETHYLENE concentration of 1 and 10 mg/L. Higher chlorinated solvent TRICHLOROETHYLENE rejection can be obtained when lower chlorinated solvent TRICHLOROETHYLENE concentration (1 mg/L) was applied. High chlorinated solvent TRICHLOROETHYLENE concentration (10 mg/L) would increase the pore size of NANOFILTRATION, which causes the decrease in chlorinated solvent TRICHLOROETHYLENE rejection rate. Approximately 46.6% of flux drop was observed when NANOFILTRATION MEMBRANE was used along compared to the system using FF as the first treatment stage. This indicates that the application of FIBER-BALL FILTRATION could maintain a higher flux of GROUNDWATER TREATMENT. The developed FIBER-BALL FILTRATION and NANOFILTRATION hybrid MEMBRANE system is able to reduce the chlorinated solvent TRICHLOROETHYLENE and solid concentrations to meet the water reuse and groundwater remediation standards.

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APA: Copy

KAO, C.M.. (2014). RECOVERY OF CHLORINATED SOLVENT TRICHLOROETHYLENE CONTAMINATED GROUNDWATER USING A HYBRID TREATMENT SYSTEM. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST), 11(1), 149-158. SID. https://sid.ir/paper/285644/en

Vancouver: Copy

KAO C.M.. RECOVERY OF CHLORINATED SOLVENT TRICHLOROETHYLENE CONTAMINATED GROUNDWATER USING A HYBRID TREATMENT SYSTEM. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST)[Internet]. 2014;11(1):149-158. Available from: https://sid.ir/paper/285644/en

IEEE: Copy

C.M. KAO, “RECOVERY OF CHLORINATED SOLVENT TRICHLOROETHYLENE CONTAMINATED GROUNDWATER USING A HYBRID TREATMENT SYSTEM,” INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST), vol. 11, no. 1, pp. 149–158, 2014, [Online]. Available: https://sid.ir/paper/285644/en

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