排序方式: 共有28条查询结果,搜索用时 46 毫秒
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化学、生化法处理酚醛废水工程实例 总被引:2,自引:0,他引:2
采用化学、生化法处理高浓度酚醛废水,运行成本低廉,出水稳定,对成分相对单一稳定的化工废水,具有极大的借鉴作用. 相似文献
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酚醛树酯废水是难处理的工业废液。实验室研究表明 ,利用该废水所含的甲醛可以代替甲醛原料生产改性脲醛树酯 ,用作木材粘结剂。 1t酚醛树酯废水可生产 3.3t改性脲醛树酯 ,在经济上、环境上均有效益。 相似文献
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基于生命周期评价方法(Life Cycle Assessment,LCA),研究了使用机械物理法和热解法回收废旧酚醛层压塑料过程中的物料消耗、能源消耗以及对环境的排放,评价了两种方法在回收过程中对环境的影响。通过现场测量和资料调研的方式获得了所有回收过程中能量物质的输入/输出和环境外排数据。结果表明:对于回收1 kg废旧酚醛层压板过程,从资源消耗来看,机械物理法的资源耗竭系数为0.144×10-6a,热解法为0.102×10-6a;从总环境负荷来看,机械物理法的环境负荷是0.1639×10-3a-1,热解法的环境负荷是0.3387×10-3a-1,热解法是机械物理法的2.53倍;从环境影响类型来看,机械物理法主要环境影响为烟尘与灰尘和酸化,分别占总环境负荷的50.40%和25.50%;热解法主要环境影响全球变暖、酸化和烟尘与灰尘,分别占36.93%、23.53%和17.89%。因此,从平衡生命周期能源消耗、环境排放和经济型角度出发,机械物理法比热解法回收热固性酚醛层压塑料具有更好的实用价值,更适宜大力推广。 相似文献
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Most of the hazardous pollutants are phenolic in nature and persists in the environment. The ability of laccases to oxidize phenolic compounds and reduce molecular oxygen to water has led to intensive studies of these enzymes. Therefore the fungal strains with high laccase activity and substrate affinity that can tolerate harsh environmental conditions have a potential for biotechnological applications. Salt tolerant laccase secreting fungi can be utilized in treatment of saline and phenolic rich industrial effluents such as coir effluent and textile effluent that needed to be diluted several fold before microbial treatment. This is the first study describing the isolation and optimization of a salt tolerant strain of Trichoderma sp. potential for industrial applications. The fungus was identified based on morphological characteristics and was subsequently confirmed with molecular techniques and deposited at National Fungal Culture Collections of India (NFCCI) under the Accession No. Trichoderma viride NFCCI 2745. In contrast to other laccase secreting fungi, light conditions did not exert much influence on laccase production of this strain and salinity enhanced its laccase secretion. The fungus effectively removed the phenolic content of the textile effluent, coir-ret liquor and wood processing effluent within 96 hr of incubation. The tolerance of the fungus to high salinity and phenolic compounds makes this strain ideal for treating saline and phenolic rich industrial effluents. 相似文献
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造纸黑液资源化工程木质素应用的研究:木质素做酚醛型木材胶粘剂 总被引:8,自引:0,他引:8
以资源化技术回收造纸黑液中的木质素,有较高的纯度和稳定的质量。经过改性,复配制成酚醛交粘剂,制成的胶合板经GB9846-88标准测定,可达到一类酚模型胶合板的质量指标,取代量约50%。胶粘剂合成条件和制板条件与现行胶合板工业生产条件相当。 相似文献
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《再生资源与循环经济》2009,2(2):45-45
专利名称:废旧印刷电路板中非金属材料的再利用方法,专利名称:电路板及电镀污泥资源化回收工艺,专利名称:利用废弃印刷电路板中非金属材料制备酚醛模塑料的方法,专利名称:一种汽车与电子废弃电路板的脱焊设备,专利名称:从镀金印刷电路板废料中回收金和铜的方法. 相似文献
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