The Reuse of Biosludge as an Adsorbent from a Petrochemical Wastewater Treatment Plant |
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| Authors: | Hung-Lung Chiang Ching-Guan Choa Shih-Yu Chen Mu-Chuan Tsai |
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| Institution: | 1. Department of Environmental Engineering , Fooyin University , Kaohsiung , Taiwan hlchiang@mail.fy.edu.tw;3. Department of Environmental Engineering , Fooyin University , Kaohsiung , Taiwan;4. Graduate Institute of Environmental Engineering , T’ai-nan , Taiwan |
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| Abstract: | Abstract Biosludge was obtained from a petrochemical industry’s biological wastewater treatment plant. Zinc chloride (ZnCl2) was used as a sludge activation agent during the pyrolytic process. Scanning electron microscope (SEM) image photographs, element composition, surface functional group, and pore structure were analyzed for the sludge adsorbent characteristics. Results indicated the proper ZnCl2-immersed concentration, pyrolytic temperature, and time could produce adsorbent from the bio-sludge. The optimal conditions for a larger surface area adsorbent were 3 M ZnCl2-immersed sludge pyrolyzed at 600 °C for 30 min and washed with 3 N hydrochloric acid (HCl) solution and distilled water. The predominant pore size of the sludge adsorbent was the mesopore. |
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