| 粉煤灰替代石灰进行污泥深度脱水的中试研究 |
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| 引用本文： | 何艳华, 蒋志坚, 宋联, 朱葛, 李冲, 王红军, 王硕, 李激. 粉煤灰替代石灰进行污泥深度脱水的中试研究[J]. 环境工程学报, 2017, 11(4): 2447-2451. doi: 10.12030/j.cjee.201510163 |
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| 作者姓名： | 何艳华 蒋志坚 宋联 朱葛 李冲 王红军 王硕 李激 |
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| 作者单位： | 1. 无锡国联环保能源集团有限公司, 无锡 214131; 2. 无锡国联环保科技股份有限公司, 无锡 214131; 3. 江南大学 环境与土木学院, 无锡 214122; 4. 江苏省厌氧生物技术重点实验室, 无锡 214122 |
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| 基金项目： | 国家水体污染控制与治理科技重大专项（2013ZX07315-002-12，2013ZX07315-003-05） 江苏省政策引导类计划（产学研合作）—前瞻性联合研究项目（BY2015019-27） |
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| 摘 要： | 采用板框压滤机在中试规模下，以粉煤灰替代工业石灰，对污泥进行调质脱水实验研究，从而考察粉煤灰替代石灰进行污泥调质脱水的可行性。结果表明：粉煤灰投加后可降低污泥pH，降低其二次污染危害，但污泥进料量却降低14.3%~15.2%，脱水能力下降；针对不同有机质含量的污泥，粉煤灰的替代性并不相同，对于低有机质含量污泥，采用粉煤灰替代工业石灰具有一定可行性，且随着粉煤灰投加量的加大，污泥热值逐步上升，而对于高有机质含量污泥，粉煤灰并不适用于其深度脱水过程。
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| 关 键 词： | 粉煤灰 有机质 板框压滤 热值 |
| 收稿时间： | 2015-12-01 |
Pilot-scale study on deep dewatering process of sewage sludge by fly ash and quicklime |
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| HE Yanhua, JIANG Zhijian, SONG Lian, ZHU Ge, WANG SHUO, LI Chong, WANG Hongjun, LI Ji. Pilot-scale study on deep dewatering process of sewage sludge by fly ash and quicklime[J]. Chinese Journal of Environmental Engineering, 2017, 11(4): 2447-2451. doi: 10.12030/j.cjee.201510163 |
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| Authors: | HE Yanhua JIANG Zhijian SONG Lian ZHU Ge WANG SHUO LI Chong WANG Hongjun LI Ji |
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| Affiliation: | 1. Wuxi Guolian Environment&Energy Group Co. Ltd., Wuxi 214131, China; 2. Wuxi Guolian Environmental Science&Technology Co. Ltd., Wuxi 214131, China; 3. School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China; 4. Jiangsu Key Laboratory of Anaerobic Biotechnology, Jiangnan University, Wuxi 214122, China |
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| Abstract: | In order to investigate the feasibility of fly ash in the deep dewatering process of sewage sludge, a pilot-scale experiment was carried out in a plate and frame filter press, and the effects of combining fly ash and quicklime conditioner were studied. The results showed that the pH value of the sludge decreased by adding fly ash, which could reduce the hazardous contaminants; however, the working capability decreased from 14.3% to 15.2%. In addition, the applicability of the combined conditioner to sludge with low organic matter content is significant, the water content was maintained below 60%, and the heating value gradually increased along with the addition of fly ash. For high-organic content sludge, the conditioning effect of fly ash is not as suitable as that of quicklime. |
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| Keywords: | fly ash organic matters plate-frame pressure filtration heating value |
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