水葫芦规模化脱水作业前粉碎预处理方案中试比选
发布时间：2018-08-19 17:51
【摘要】：该文以建成的水葫芦中试示范工程为试验平台,通过对脱水前不同的工程预处理方案进行比较研究,并分析各处理环节的成本构成,以期为水葫芦规模化处理处置工程获得低本高效的整体解决方案提供理论依据。结果表明,从不同粉碎处理方式的能耗角度考虑,采用打捞船粗粉后二次粉碎的预处理方式有利于降低水葫芦脱水环节的能耗,粉碎和脱水处理1 t水葫芦需2.5 kW·h;通过对不同的打捞处置方案分析发现,采用打捞船粗粉处理上岸方式,可大大降低其转驳成本,减少岸上粉碎环节,从而提高粉碎和脱水处理能力,降低作业环节成本,并且打捞船粗粉方式的减容率达70.61%,使转驳运输能力提高3.4倍;水葫芦经厌氧发酵后的固液分离效果明显优于水葫芦直接固液分离,其脱水残渣含水率为62.89%,脱水1 t经厌氧发酵处理后的水葫芦仅需0.06 h和0.7 kW·h。该研究结果为最终形成"打捞船粗粉碎-转驳-二次粉碎-脱水"的水葫芦处理处置工程方案奠定了坚实基础。
[Abstract]:Based on the pilot demonstration project of water hyacinth, this paper makes a comparative study on different pretreatment schemes before dehydration, and analyzes the cost composition of each treatment link. In order to provide theoretical basis for water hyacinth scale treatment and disposal project to obtain low cost and high efficiency overall solution. The results show that from the point of view of energy consumption of different comminution methods, it is beneficial to reduce the energy consumption of dehydration link of water hyacinth by using pretreatment method of secondary comminution after coarse powder of salvage ship. It takes 2.5 kW to comminute and dewatering a ton of water hyacinth. By analyzing the different salvage disposal schemes, it is found that the transfer cost and the onshore comminution can be greatly reduced by using the coarse powder treatment of the salvage ship to disembark the water hyacinth. Thus, the capacity of crushing and dehydration is improved, the cost of operation link is reduced, and the capacity reduction rate of coarse powder method of salvage ship reaches 70.611.The capacity of transfer and barge transportation is increased 3.4 times. The solid-liquid separation effect of water hyacinth by anaerobic fermentation is obviously better than that of water hyacinth by direct solid-liquid separation. The moisture content of dehydrated residue is 62.89. The water hyacinth treated by anaerobic fermentation only needs 0.06 h and 0.7 kW / h. The results laid a solid foundation for the final treatment and disposal project of water hyacinth with "salvage ship rough comminution, transfer barge, secondary comminution and dehydration".
【作者单位】： 江苏省农业科学院循环农业研究中心;江苏省农业废弃物资源化工程技术研究中心;
【基金】：江苏省重点研发计划(BE2015356) 国家科技支撑计划(2015BAL04B05) 国家水体污染控制与治理科技重大专项(2012ZX07101-004)
【分类号】：X705
本文编号：2192380
[Abstract]:Based on the pilot demonstration project of water hyacinth, this paper makes a comparative study on different pretreatment schemes before dehydration, and analyzes the cost composition of each treatment link. In order to provide theoretical basis for water hyacinth scale treatment and disposal project to obtain low cost and high efficiency overall solution. The results show that from the point of view of energy consumption of different comminution methods, it is beneficial to reduce the energy consumption of dehydration link of water hyacinth by using pretreatment method of secondary comminution after coarse powder of salvage ship. It takes 2.5 kW to comminute and dewatering a ton of water hyacinth. By analyzing the different salvage disposal schemes, it is found that the transfer cost and the onshore comminution can be greatly reduced by using the coarse powder treatment of the salvage ship to disembark the water hyacinth. Thus, the capacity of crushing and dehydration is improved, the cost of operation link is reduced, and the capacity reduction rate of coarse powder method of salvage ship reaches 70.611.The capacity of transfer and barge transportation is increased 3.4 times. The solid-liquid separation effect of water hyacinth by anaerobic fermentation is obviously better than that of water hyacinth by direct solid-liquid separation. The moisture content of dehydrated residue is 62.89. The water hyacinth treated by anaerobic fermentation only needs 0.06 h and 0.7 kW / h. The results laid a solid foundation for the final treatment and disposal project of water hyacinth with "salvage ship rough comminution, transfer barge, secondary comminution and dehydration".
【作者单位】： 江苏省农业科学院循环农业研究中心;江苏省农业废弃物资源化工程技术研究中心;
【基金】：江苏省重点研发计划(BE2015356) 国家科技支撑计划(2015BAL04B05) 国家水体污染控制与治理科技重大专项(2012ZX07101-004)
【分类号】：X705
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