Current advances in biological swine wastewater treatment using microalgae-based processes
Journal
Bioresource Technology
Journal Volume
289
Date Issued
2019
Author(s)
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. © 2019 Elsevier Ltd
Subjects
Microalgae; Nutrient removal; Phytoremediation; Swine wastewater
Other Subjects
Algae; Ammonia; Biological water treatment; Bioremediation; Chemical oxygen demand; Eutrophication; Microorganisms; Reclamation; Wastewater treatment; Eutrophication potentials; Exponential increase; Micro-algae; Microalgal cultivations; Nutrient removal; Phytoremediation; Swine wastewater; Treatment and disposal; Wastewater disposal; ammonia; phosphorus; protein; environmental impact; eutrophication; microalga; nutrient; phytoremediation; pig; pollutant removal; wastewater; wastewater treatment; microalga; nonhuman; oxygen consumption; phytoremediation; pig farming; priority journal; waste component removal; waste water management; animal; biochemical oxygen demand; chemistry; metabolism; microalga; pig; waste water; Suidae; Ammonia; Animals; Biological Oxygen Demand Analysis; Microalgae; Phosphorus; Swine; Waste Water
Type
review