Investigation on anaerobic biodegradability of pharmaceutical wastewater and anaerobic treatment using UASB reactor

Weicheng Li, Zhe Tian, Weikang Qi, Qigui Niu, Yuyu Liu, Yuyou Li, Yingxin Gao

Research output: Contribution to journalArticlepeer-review

Abstract

In this study, anaerobic biodegradability of high strength pharmaceutical wastewater from six main departments in a pharmaceutical manufacturer was firstly evaluated by a series of batch experiments. Based on the experimental data, two stage-UASBs were applied to treat the wastewater containing effluent from all manufacturing departments. The influence of organic loading rate (OLR) from initial 1.0 g COD/(L·d) to maximum 12.0 g COD/(L·d) on the performance of reactor was investigated through step-decreasing HRT. Influent COD was diluted to 10 000 mg/L with the adjustment of pH to 6.8~7.1. Total COD removal efficiency of 73.5% with the effluent COD of 2 600 mg/L was noticed at OLR of 6.0 g COD/(L·d) (maximum OLR for practical engineering application). Satisfactory organic compound removal efficiency during the long term run indicted the feasibility of two-stage UASBs for treatment of this kind of pharmaceutical wastewater effluent.

Original languageEnglish
Pages (from-to)5156-5160
Number of pages5
JournalChinese Journal of Environmental Engineering
Volume8
Issue number12
Publication statusPublished - 2014 Dec 5

Keywords

  • Anaerobic biodegradability
  • Pharmaceutical wastewater
  • UASB reactor

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Chemistry
  • Water Science and Technology
  • Waste Management and Disposal
  • Pollution

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