文摘

纺织工业废物,一个真正的威胁到埃及的农业环境

作者(年代):Wafaa M。Abd-El-Rahim, Hassan Moawad

相关的问题向环境排放的纺织染料的越来越多的关注。本研究进行的大小来确定问题与环境污染的关系。问卷提交几个在埃及的主要工业网站:纺织工厂Shubra El Khima Mehella Kubra, Kafr El-Dawar和新的Borg El-Arab区域。调查问卷旨在寻求信息纺织废水处理、污水量排放,染料使用,污水排放的染料损失百分比。土壤接近纺织工厂进行分析来评估潜在的土壤退化。土壤生物活性使用脱氢酶酶活性、总微生物数量影响的三个常见的纺织染料使用(Dis-azo棕色、红色酸和活性)及其混合物进行了评估。这些染料在有益的土壤微生物的影响;根瘤菌、固氮菌、酵母和真菌,是评价。主要研究结果如下:-废水的COD废水普遍高达到3918 mg / l。另一方面,使用的BOD涉及测量溶解氧微生物降解有机化合物普遍低,没有超过350 mg / l。 Such low BOD values relative to COD can be attributed to the dyes toxic effect onmicrobial activity. The pH of the tested wastewaters ranged from3.8 to as high as 11.9. The salinitymeasurement as EC ranged from0.4 to 19.6/ dS/m. Such wide range in pH and EC is likely to be attributed to the use of different chemical including the dyes. The textile plants had a detrimental effect on the quality of adjacent soils expressed by chemo-physical properties such as pH and EC of the soil as well as the biological activity of the soil. The dyes showed devastating effect on beneficial soil microorganisms such as Rhizobium, Azotobacter and yeast. On contrary fungi showed a strong resistance to the dye toxicity. This strengthens the ideas of studying the fungal strains to identify the potential fungal candidates for dyes removal and biodegradation.