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固液废物资源化利用 (Recyle & Reutilization of Solid Wastes)

以净水污泥的回收与利用为目标,开展净水污泥中絮凝剂材料的再生及其在印染废水处理中的应用研究。研究固废激活再生、钢渣的资源化利用、水泥/混凝土微生物腐蚀控制技术及其性能研究,致力于产业化应用。


以固体废弃物材料资源化利用为目标,研究无机固体废弃物与有机固体废弃物材料资源化利用的可行性及途径。

    一、无机固体废弃物材料资源化利用

(1)净水污泥材料资源化利用。采用酸与超声波协同作用对净水污泥中的混凝剂成份进行回收,回收的混凝剂可用于工业废水处理;以净水污泥为主要原料,采用高温灼烧的方法制备多孔吸附剂,利用该吸附剂去除工业废水中的重金属离子。

(2)工业废渣资源化利用。在机械力作用下,通过加入添加剂对合金工业废渣进行活化处理,使其成为混凝土掺和料的水泥基材料;利用粉煤灰、烟气脱硫废渣等工业废弃物制备光氧化催化剂、吸附剂、阻燃剂等环境友好材料,用于污水处理、阻燃材料等领域。

                                      

    二、有机固体废弃物材料资源化利用

(1)废弃有机高分子材料的再生利用。聚氨酯泡沫材料具有较好的生物负载功能,将废弃聚氨酯泡沫经改性处理,使其表面具有多种活性基团,以利于微生物附着,改善微生物生长环境,提高微生物的降解能力;利用聚苯乙烯等废弃高分子材料制备大分子型阻燃剂,用于阻燃型高分子材料的制备。

(2)造纸污泥的资源化利用。造纸污泥的主要成分是纸浆纤维,将造纸污泥进行改性,使纸浆纤维重新应用于再生纸生产。

                          

    三、水泥基复合材料

(1)无机工业废渣活性激发技术:首次系统研究了机械力活化和化学活化对合金工业废渣活性的影响,为合金工业废渣在水泥基材料中的应用提供了重要理论支持。

 

(2)道路基层复合材料:对抑制道路半刚性基层收缩,提高路面抗开裂性能具有实用价值,为优化道路半刚性基层设计提供依据。

 

                            

 

 

Currently we are mainly carrying out the recycle of flocculants materials and their applications on dyewastewater, with aims on recycle and reutilization of water sludge. We are conducting research in the areas of solid waste recovery, reutilization of steel slag, the technologies for preventing cement / concrete from corrosion  and their properties study, with emphasis on the industrial applications.

In order to reutilize the solid wastes, the possibility and ways of reutilization of organic and inorganic solid wastes were studied.

1.      Reutilization of inorganic solid wastes

(1)   Reutilization of water sludge: Recycle was obtained by a synergistic effect of acid and ultrasonic waves on flocculants from water sludge. The recycling flocculants can be used for the wastewater treatment; the porous adsorbents can be obtained in the condition of high-temperature from water sludge to remove heavy metals in the wastewater.

(2)   Reutilization of industrial solid waste: The industrial solid wastes can be activated by adding additives under the action of mechanical force, and then turn into the mixture of cement based materials and concrete. Environment-friendly materials, such as photocatalysts, absorbents, and flame retardants can be made from the fly ash and residual wastes of flue gas desulfurization. In addition, they can be used in the field of wastewater treatment and flame retardants, etc.

2.      Reutilization of organic solid waste

(1)   Recycling of waste organic polymer materials: Polyurethane foam materials have a good bio-load function. The discarded polyurethane foams will have various active functional groups on their surface by the modification, so they easily adsorb microorganisms to improve the environment for microorganisms growing, to enhance the ability of microbial degradation. The polymer flame retardants can be produced by the discarded polymer materials of polystyrene.

(2)   Reutilization of paper sludge: Pulp fibers, the main components of paper sludge can be recycled for the production of paper, with modification of paper sludge.

3.      Cement-based composites.

(1)   The stimulate technology of inorganic industrial wastes:  The study of the effects of mechanical activation and chemical activation on the activity of alloy industrial wastes provides the important theoretical support for the alloy industrial wastes in the application of cement-based materials.

(2)   Road-based course composites:  Research on inhibition of semi-rigid pavement contraction and improvement of anti-cracking performance, provides a basis for optimization design of road semi-rigid.

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