Current advances in biological swine wastewater treatment using microalgae-based processes

Dillirani Nagarajan; Adi Kusmayadi; Hong-Wei Yen; Cheng-Di Dong; Duu-Jong Lee; Jo-Shu Chang

doi:10.1016/j.biortech.2019.121718

Current advances in biological swine wastewater treatment using microalgae-based processes

Bioresour Technol. 2019 Oct:289:121718. doi: 10.1016/j.biortech.2019.121718. Epub 2019 Jun 27.

Authors

Dillirani Nagarajan¹, Adi Kusmayadi², Hong-Wei Yen², Cheng-Di Dong³, Duu-Jong Lee⁴, Jo-Shu Chang⁵

Affiliations

¹ Department of Chemical Engineering, National Taiwan University, Taipei 106, Taiwan; Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan.
² Department of Chemical and Material Engineering, Tunghai University, Taichung, Taiwan.
³ Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan.
⁴ Department of Chemical Engineering, National Taiwan University, Taipei 106, Taiwan; Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan.
⁵ Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan; Research Center for Circular Economy, National Cheng Kung University, Tainan 701, Taiwan; Research Center for Energy Technology and Strategy, National Cheng Kung University, Tainan 701, Taiwan; Department of Chemical and Materials Engineering, College of Engineering, Tunghai University, Taichung 407, Taiwan. Electronic address: changjs@mail.ncku.edu.tw.

PMID: 31296361
DOI: 10.1016/j.biortech.2019.121718

Abstract

There is an exponential increase in swine farms around the world to meet the increasing demand for proteins, resulting in a significant amount of swine/piggery wastewater. The wastewater produced in swine farms are rich in ammonia with high eutrophication potential and negative environmental impacts. Safe methods for treatment and disposal of swine wastewater have attracted increased research attention in the recent decades. Conventional wastewater treatment methods are limited by the high ammonia content and chemical/biological oxygen demand of swine wastewater. Recently, microalgal cultivation is being proposed for the phytoremediation of swine wastewater. Microalgae are tolerant to high ammonia levels seen in swine wastewater and they also ensure phosphorus removal simultaneously. This review first gives a brief overview on the conventional methods used for swine wastewater treatment. Microalgae-based processes for the clean-up of swine wastewater are discussed in detail, with their potential advantages and limitations. Future research perspectives are also presented.

Keywords: Microalgae; Nutrient removal; Phytoremediation; Swine wastewater.

Publication types

Review

MeSH terms

Ammonia / metabolism
Animals
Biological Oxygen Demand Analysis
Microalgae / metabolism*
Phosphorus / metabolism
Swine
Wastewater / chemistry*

Substances

Waste Water
Phosphorus
Ammonia