PREPARATION OF ADSORBENT BY COMBINED DRINKING WATER TREATMENT SLUDGE AND POWDERED ACTIVATED CARBON AND ITS AMMONIUM REMOVAL PERFORMANCE

LI Rong; XU Duo; WEI Jie; WANG Dong-tian

doi:10.13205/j.hjgc.202009016

Volume 38 Issue 9

Nov. 2020

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2020 > 38(9): 95-100,112

LI Rong, XU Duo, WEI Jie, WANG Dong-tian. PREPARATION OF ADSORBENT BY COMBINED DRINKING WATER TREATMENT SLUDGE AND POWDERED ACTIVATED CARBON AND ITS AMMONIUM REMOVAL PERFORMANCE[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(9): 95-100,112. doi: 10.13205/j.hjgc.202009016

Citation:

LI Rong, XU Duo, WEI Jie, WANG Dong-tian. PREPARATION OF ADSORBENT BY COMBINED DRINKING WATER TREATMENT SLUDGE AND POWDERED ACTIVATED CARBON AND ITS AMMONIUM REMOVAL PERFORMANCE[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(9): 95-100,112. doi: 10.13205/j.hjgc.202009016

Citation:

LI Rong, XU Duo, WEI Jie, WANG Dong-tian. PREPARATION OF ADSORBENT BY COMBINED DRINKING WATER TREATMENT SLUDGE AND POWDERED ACTIVATED CARBON AND ITS AMMONIUM REMOVAL PERFORMANCE[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(9): 95-100,112. doi: 10.13205/j.hjgc.202009016

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PREPARATION OF ADSORBENT BY COMBINED DRINKING WATER TREATMENT SLUDGE AND POWDERED ACTIVATED CARBON AND ITS AMMONIUM REMOVAL PERFORMANCE

doi: 10.13205/j.hjgc.202009016

LI Rong¹,
XU Duo¹,
WEI Jie²,
WANG Dong-tian^{1,2
,
,}

1. School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China;
2. School of Chemistry, Biology and Materials Engineering, Suzhou University of Science and Technology, Suzhou 215009, China

Received Date: 2019-08-07

Abstract

Abstract

The adsorbent was prepared by combining the drinking water treatment sludge with the powdered activated carbon, in order to remove ammonia nitrogen from the water. The optimum composite mass ratio and calcination temperature of drinking water treatment sludge and powdered activated carbon were studied. The adsorbents were characterized by EDX, SEM, XRD, FTIR and BET. The influences of different parameters such as contact time of composite adsorbent, initial pH of ammonia nitrogen, dosage of adsorbent and initial concentration of ammonia nitrogen were investigated. The results indicated that the adsorption performance of the composite adsorbent was better than that of the raw sludge adsorbent. When the contact time was 5h and the pH was 9, the ammonia nitrogen removal effect was the best. The adsorption isotherms and adsorption kinetic model were fitted by the experimental results. It was found that the adsorption process of the composite adsorbent on ammonia nitrogen accorded with the Langmuir isotherm adsorption model and the second-order kinetic model.
- adsorption,
- drinking water treatment sludge,
- powdered activated carbon,
- composite adsorbent,
- ammonia nitrogen

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References(22)

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