Comparative study about the performance of three types of modified natural treatment systems for rice noodle wastewater

Bioresour Technol. 2019 Jun:282:163-170. doi: 10.1016/j.biortech.2019.02.117. Epub 2019 Feb 28.

Abstract

In this study, three semi-pilot scale systems (vertical flow constructed wetland, multi-soil layering, and integrated hybrid systems) for treating real rice noodle wastewater were operated parallelly for the first time in a tropical climate at a loading rate of 50 L/(m2·d) for more than 7 months to determine the optimal conditions and to compare their treatment performance. The results demonstrated that these systems were appropriate for the removal of organics, suspended solids, and total coliform (Tcol). The highest reductions in chemical oxygen demand (CODCr, 73.2%), phosphorus (PO4-P, 54%), and Tcol (4.78 log MPN/100 mL inactivation) were obtained by the integrated hybrid system, while the highest removal efficiencies of ammonium (NH4-N, 60.64%) and suspended solids (80.49%) were achieved in the vertical-flow-constructed wetland and multi-soil layering systems respectively.

Keywords: Constructed wetland; Decentralized wastewater treatment system; Multi-soil layers; Rice noodle wastewater.

Publication types

  • Comparative Study

MeSH terms

  • Ammonium Compounds / metabolism
  • Biological Oxygen Demand Analysis
  • Food Industry
  • Oryza / chemistry*
  • Phosphorus / metabolism
  • Pilot Projects
  • Soil
  • Waste Disposal, Fluid / methods*
  • Wastewater / chemistry*
  • Wetlands

Substances

  • Ammonium Compounds
  • Soil
  • Waste Water
  • Phosphorus