Biodegradable sheet for culturing sewage denitrifiers
    5.
    发明授权
    Biodegradable sheet for culturing sewage denitrifiers 失效
    用于培养污水脱硝器的生物降解片材

    公开(公告)号:US5316832A

    公开(公告)日:1994-05-31

    申请号:US57585

    申请日:1993-05-04

    摘要: A biodegradable substrate in sheet form which acts as a source of carbon and hydrogen in oxygen-poor water in biological water-treatment stages. The substrate is covered with at least one layer of a population of spontaneously growing denitrifiers. The substrate is a spun-bonded non-woven fabric weighing 10 to 1500 g/m.sup.2. It has a prescribed effective area that results in an ideal rate of denitrification per clarification stage at a prescribed rate of flow per area and time. The fabric is comprised of at least 50% continuous poly-.epsilon.-caprolactone filament with a mean molecular weight of 20,000 to 70,000. The individual filaments adhere to each other at their intersections.

    摘要翻译: 在生物水处理阶段作为贫氧水中碳和氢的来源的片状生物降解性底物。 基底被至少一层自发生长的反硝化菌群覆盖。 基材是重量为10至1500g / m 2的纺粘非织造织物。 它具有规定的有效面积,每个澄清阶段以规定的每个区域和时间的流量达到理想的脱氮率。 织物由平均分子量为20,000至70,000的至少50%的连续聚ε-己内酯长丝组成。 单个细丝在它们的交点处彼此粘附。