Influence of modified coal fly ash on its Cation Exchange Capacities

• Autorzy: Cheng H. , Song H. , Xue F. , Chen X. , Cheng F.
• Języki publikacji: EN

Abstrakty

EN

Fly ash modified with sodium hydroxide calcination-hydrothermal was used to treat ammonia-nitrogen wastewater. The mount of alkali, the solid-liquid ratio, and the temperature of calcination were investigated in the process of modification. The best modified condition was when the ratio of sodium hydroxide and fly ash was 0.4:1, the ratio of solid and liquid was 1:1, and the temperature of calcination was 400ºC. After modification, the zeolite-like substances were produced from the fly ash and the cation exchange capacities (CEC) increased from 5 to 81 mmol/100 g. The separation efficiency of the ammonia-nitrogen was up to 90%.

• Wydawca: -
• Czasopismo: Polish Journal of Environmental Studies
• Rocznik: 2014
• Tom: 23
• Numer: 4
• Opis fizyczny: p.1307-1312,fig.,ref.

Twórcy

autor

Cheng H.

• State Environment Protection Key Laboratory of Efficient Utilization Technology of Coal Waste Resources, Institute of Resources and Environment Engineering, Shanxi University, Taiyuan 030006, China

autor

Song H.

• State Environment Protection Key Laboratory of Efficient Utilization Technology of Coal Waste Resources, Institute of Resources and Environment Engineering, Shanxi University, Taiyuan 030006, China

autor

Xue F.

• State Environment Protection Key Laboratory of Efficient Utilization Technology of Coal Waste Resources, Institute of Resources and Environment Engineering, Shanxi University, Taiyuan 030006, China

autor

Chen X.

• State Environment Protection Key Laboratory of Efficient Utilization Technology of Coal Waste Resources, Institute of Resources and Environment Engineering, Shanxi University, Taiyuan 030006, China

autor

Cheng F.

• State Environment Protection Key Laboratory of Efficient Utilization Technology of Coal Waste Resources, Institute of Resources and Environment Engineering, Shanxi University, Taiyuan 030006, China

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