Fabrication of monodispersed plasmonic photocatalysts on activated carbon with the carbon source and reduction property of sewage sludge

Sewage sludges produced from wastewater treatment plants continue to create environmental problems in terms of volume and method of valorization. Thermal treatment of sewage sludge is considered as an attractive method in reducing sludge volume which at the same time produces reusable by-products. This paper deals with the first step of activated carbon production from sewage sludge, the carbonization step. Experiments are carried out on viscous liquid sludge and limed sludge by varying carbonization temperature and heating rate. The results show that carbonized residue properties are interesting for activated carbon production.

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Simultaneous Removal of SO2 and NO with Activated Carbon from Sewage Sludge Modified by Chitosan

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.253-255.960 ◽

2012 ◽

Vol 253-255 ◽

pp. 960-964 ◽

Cited By ~ 1

Author(s):

Xiao Dan Fan ◽

Xiang Kai Zhang

Keyword(s):

Activated Carbon ◽

Sewage Sludge ◽

Active Sites ◽

Operating Conditions ◽

Competitive Sorption ◽

Simultaneous Removal ◽

No Removal ◽

Adsorption Capacities ◽

So2 Adsorption ◽

Removal Of So2

The simultaneous removal of SO2 and NO was investigated with the activated carbon from sewage sludge (referred as ACS) modified by chitosan (referred as CS).The effects of CS loading and operating conditions on the simultaneous removal of SO2 and NO were analyzed. The results indicate that compared with the ACS, impregnating CS results in significant increase in SO2 or NO removal. Relative humidity enhances SO2 adsorption capacities, but not for NO. The SO2 adsorption capacities of the CS / ACS show no obvious decrease at small amount of NO in the feed. However, higher amounts of NO reduce the SO2 adsorption capacities. The opposite phenomenon appears for NO when a small amount of SO2. So a competitive sorption consists between NO and SO2. Simultaneous adsorptions for NO and SO2 is due to more active sites from CS.

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Removal of Phenolic Compounds from Water Using Sewage Sludge-Based Activated Carbon Adsorption: A Review

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph14101094 ◽

2017 ◽

Vol 14 (10) ◽

pp. 1094 ◽

Cited By ~ 38

Author(s):

Nuhu Mu’azu ◽

Nabeel Jarrah ◽

Mukarram Zubair ◽

Omar Alagha

Keyword(s):

Activated Carbon ◽

Phenolic Compounds ◽

Sewage Sludge ◽

Activated Carbon Adsorption ◽

Carbon Adsorption

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Anaerobic Degradation of PCP and Phenol in Fixed-Film Reactors: The Influence of an Additional Substrate

Water Science & Technology ◽

10.2166/wst.1991.0500 ◽

1991 ◽

Vol 24 (3-4) ◽

pp. 431-436 ◽

Cited By ~ 20

Author(s):

H. V. Hendriksen ◽

S. Larsen ◽

B. K. Ahring

Keyword(s):

Sewage Sludge ◽

Carbon Source ◽

Anaerobic Degradation ◽

Degradation Products ◽

Phenol Degradation ◽

Treatment Plant ◽

Continuous Operation ◽

Mineral Medium ◽

Fixed Film ◽

Digested Sewage Sludge

The anaerobic degradation of pentachlorophenol (PCP) and phenol was examined in two lab-scale fixed-film reactors. Anaerobic digested sewage sludge from a municipal treatment plant was used as inoculum. The reactors were fed a mineral medium containing PCP (1-2 mg/l) and phenol (4-6 mg/l). In addition one of the reactors received 1 g/l glucose as an easily degradable carbon source. After 6 months of continuous operation, the removal of PCP in the reactor with no glucose added was approximately 60%, whereas the removal in the reactor with glucose reached 98%. Tetrachlorophenol (TeCP) and trichloro-phenol (TCP) were found as degradation products and the removal of these compounds was also significantly enhanced by the presence of glucose. Phenol degradation was approximately 70% with glucose added and 95% without glucose.

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