Process optimization of anammox-driven hydroxyapatite crystallization for simultaneous nitrogen removal and phosphorus recovery

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Abstract

Based on the requirements for advanced treatment and resource recovery of nitrogen and phosphorus pollutants in wastewater, the coupled anammox and hydroxyapatite crystallization (anammox-HAP) process was studied with an aim of achieving high efficiency and low energy consumption during simultaneous nitrogen and phosphorus removal. In the long-term experiments and batch tests, the effects of substrate conditions (nitrogen and phosphorus load, calcium concentration, etc.) on the nitrogen removal and phosphorus recovery efficiencies were investigated. The granular structure and crystal properties were analyzed together with microscopic characterization methods, and the formation mechanism of coupled anammox-HAP granules was verified. Based on these experiments, a theoretical model and technical method for realizing the coupled process were established, and a reference for practical engineering application was provided.

Detaljer

Författare
  • Lan Lin
  • Yanlong Zhang
  • Markus Beckman
  • Wenzhi Cao
  • Tong Ouyang
  • Shaopo Wang
  • Yu You Li
Externa organisationer
  • Xiamen University
  • Lund University
  • Tohoku University
  • Tianjin Chengjian University
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Annan materialteknik

Nyckelord

Originalspråkengelska
Artikelnummer121779
TidskriftBioresource Technology
Volym290
StatusPublished - 2019 okt
PublikationskategoriForskning
Peer review utfördJa
Externt publiceradJa