摘要
Wastewaters from the chemical industry are usually of high-strength and may contain minor inhibitory and recalcitrant organics that are at times not readily identifiable. This paper describes the experience of a biological waste water treatment plant （WWTP） processing a COD concentration of 43000 mg·L^-1 wastewater from an oxochemical manufacturing plant. Stage improvements of the plant process by dilution of the inhibitory influent using other chemical wastewater streams resulting in a synergistic process effect, and removal of inhibitory organics by phase separation via acidification, effectively achieved process optimization producing a high quality effluent. In particular, the COD removal efficiency of granular sludge based anaerobic reactors increased from 56% to 90%. The final effluent COD decreased from 250mg·L^-1 to 50mg·L^-1, consistently meeting the COD concentration of 100 mg·L^-1 regulatory discharge limit. The success of the process enhancements supports the hypothesis that long-chain quaternary carboxylic acids act as substrate inhibitors in the biological process.
从化学工业的废水通常具有高张力并且可以包含是的次要的禁止、不顺从的 organics 有时，不乐意地， identifiable.Thispaper 描述处理 43000 mg 中心点L~的 CODconcentration 的生物废水处理植物( WWTP )的经验(从含氧化学药品的 manufacturingplant.Stage 的-1)废水改进由导致 synergistic 进程的化学废水流完成的禁止的流入的使用其它的冲淡的植物过程，和由经由使发酸的析相作用的禁止的 organics 的移动，生产一条高质量的自河的有效地完成的进程优化。特别地，粒状淤渣的货到付款移动效率基于从 56% ～ 90%.The 期末考试自河货到付款增加的厌氧的反应堆从 250mg 中心点 L~ 减少了(-1) to50mg 中心点 L^(-1),consistently 遇见 l00 mg 中心点 L~ 的 COD 集中(-1)regulatory 分泌物限制。进程改进的成功在生物进程作为底层禁止者支持假设 thatlong 链 quaternary 羧酸行为。
