CN1931733A - 废塑料和粉煤灰合成高性能净水材料的成套技术 - Google Patents

废塑料和粉煤灰合成高性能净水材料的成套技术 Download PDF

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Publication number
CN1931733A
CN1931733A CN 200610112864 CN200610112864A CN1931733A CN 1931733 A CN1931733 A CN 1931733A CN 200610112864 CN200610112864 CN 200610112864 CN 200610112864 A CN200610112864 A CN 200610112864A CN 1931733 A CN1931733 A CN 1931733A
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fly ash
high performance
waste plastic
water purifying
purifying material
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CN 200610112864
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张付申
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Research Center for Eco Environmental Sciences of CAS
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Research Center for Eco Environmental Sciences of CAS
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Priority to CN 200610112864 priority Critical patent/CN1931733A/zh
Publication of CN1931733A publication Critical patent/CN1931733A/zh
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Abstract

提供用废塑料和粉煤灰合成高性能净水材料的成套技术，主要工艺流程包括废塑料在粉煤灰颗粒表面的加载、成型、碳化、活化工序，其特点是成本低，操作简便，合成产品的性能稳定、可靠，可以再生使用。适合城市及工业污水厂使用。

Description

废塑料和粉煤灰合成高性能净水材料的成套技术
所属技术领域
本发明涉及廉价、高效净水材料的合成，适用于城市和工业污水处理。
背景技术
吸附法进行污水处理主要可以去除水中的有机污染物，同时可以除去污水中的合成洗涤剂、微生物、病毒和重金属，并具有脱色、除臭等效果。常用的吸附剂有活性炭、硫磺煤、活化煤、沸石、硅藻土、焦炭、木炭、木屑等。使用活性炭虽然吸附效果明显，但成本高昂，而其它吸附剂则存在吸附容量小，效果不佳的缺点。
粉煤灰具有一定的吸附能力，但吸附容量小。废塑料由高分子聚合体组成，经碳化处理后可以生产优质活性碳，但这种活性碳太轻，在污水处理中难以操作。因而，将两者结合起来可以生产出适用于污水处理的高性能吸附材料。
发明内容
本发明提供一套用废弃物合成活性吸附材料的新工艺，不仅成本低廉、操作简便，而且产品的吸附性能明显高于硫磺煤和活化煤。
技术方案：首先将废塑料熔融，然后加入粉煤灰，在250-280℃条件下将废塑料加载到粉煤灰颗粒表面，185℃下成型，650℃碳化处理、CO2活化合成高性能吸附净水材料。
本发明的有益效果是，成本低，操作简便，而且合成产品的性能稳定，可以再生使用。
附图说明
图1是新型吸附剂的高倍电子显微镜(SEM)照片。
图2是新型吸附剂对靛蓝的吸附等温线。其中A代表高性能净水剂，B代表活化煤。
图3是新型吸附剂对重金属镉的吸附等温线。其中A代表高性能净水剂，B代表活化煤。
具体实施方式
图1显示新型吸附剂的表面微观特征，可以看出其表面为多孔质构造，经测定其比表面积为496m2/g。图2表明新型吸附剂具有良好的脱色效果，在100ml/g的靛蓝溶液中，吸附容量达到80mg/g以上，明显高于硫磺煤、活化煤、硅藻土、焦炭、木屑吸附级。图3表明对重金属也有较好的去除效果，在浓度为20-100mg/l的镉溶液中，其吸附效果为20mg/g左右。

Claims (3)

1.用废塑料和粉煤灰合成高性能净水材料的成套技术，其特征是：主要技术工艺包括废塑料在粉煤灰颗粒表面的加载、成型、碳化、活化工序。
2.根据权利要求1所述的技术工艺，其特征是：原材料为废塑料和粉煤灰，将废塑料加载到粉煤灰颗粒表面的操作温度为250-280℃。
3.根据权利要求1所述的技术工艺，其特征是：成型温度为185℃，碳化处理温度为650℃、活化气体为CO2活化。
CN 200610112864 2006-09-06 2006-09-06 废塑料和粉煤灰合成高性能净水材料的成套技术 Pending CN1931733A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200610112864 CN1931733A (zh) 2006-09-06 2006-09-06 废塑料和粉煤灰合成高性能净水材料的成套技术

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200610112864 CN1931733A (zh) 2006-09-06 2006-09-06 废塑料和粉煤灰合成高性能净水材料的成套技术

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CN1931733A true CN1931733A (zh) 2007-03-21

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CN 200610112864 Pending CN1931733A (zh) 2006-09-06 2006-09-06 废塑料和粉煤灰合成高性能净水材料的成套技术

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CN (1) CN1931733A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101468838B (zh) * 2007-12-24 2011-12-07 鞍钢集团矿业公司 一种复合净水剂的制作方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101468838B (zh) * 2007-12-24 2011-12-07 鞍钢集团矿业公司 一种复合净水剂的制作方法

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Open date: 20070321