由于生物质适应，ECF 漂白硫酸盐浆厂废水中枞酸的好氧生物降解得到改善。

Improved aerobic biodegradation of abietic acid in ECF bleached kraft mill effluent due to biomass adaptation.

作者信息

Belmonte M, Xavier C, Decap J, Martinez M, Sierra-Alvarez R, Vidal G

机构信息

Environmental Science Centre, EULA-Chile, Universidad de Concepcion, P.O. Box 160-C, Concepcion, Chile.

出版信息

J Hazard Mater. 2006 Jul 31;135(1-3):256-63. doi: 10.1016/j.jhazmat.2005.11.061. Epub 2006 Jan 18.

DOI:10.1016/j.jhazmat.2005.11.061

PMID:16386835

Abstract

Kraft pulp mill effluents contain elevated concentrations of resin acids, chiefly abietic and dehydroabietic acid, and other lipophilic wood constituents. Resin acids, if not efficiently removed during wastewater treatment, can be responsible for chronic toxicity in aquatic systems. The objective of this study was to investigate the biological removal of abietic acid (AbA) during the treatment of elemental chlorine free (ECF) kraft mill effluents in aerobic lagoons and to assess its improvement with time as a result of biomass adaptation. Under these conditions, the average removal efficiencies of AbA and BOD(5) attained in the aerobic lagoon were high and exceeded 80% and 95%, respectively. Microbial inhibition of non-acclimated and acclimated biomass by AbA was not detected in batch bioassays. Kinetic studies showed that the K(s) and V(m) values equalled 76.7 mg AbA/l and 0.011 l/h, respectively, for the non-acclimated biomass, and 1678 mg AbA/l and 0.13 l/h, respectively, for the acclimated biomass.

摘要

硫酸盐制浆厂废水含有高浓度的树脂酸，主要是枞酸和脱氢枞酸，以及其他亲脂性木材成分。如果在废水处理过程中不能有效去除树脂酸，可能会导致水生系统的慢性毒性。本研究的目的是调查在好氧氧化塘处理无元素氯（ECF）硫酸盐制浆厂废水过程中枞酸（AbA）的生物去除情况，并评估由于生物量适应而随时间产生的改善效果。在这些条件下，好氧氧化塘中AbA和生化需氧量（BOD₅）的平均去除效率很高，分别超过了80%和95%。在分批生物测定中未检测到AbA对未驯化和驯化生物量的微生物抑制作用。动力学研究表明，未驯化生物量的Kₛ和Vₘ值分别为76.7 mg AbA/L和0.011 L/h，驯化生物量的Kₛ和Vₘ值分别为1678 mg AbA/L和0.13 L/h。