Nutrient Recovery from Slaughterhouse Wastewater

Poultry slaughterhouse wastewater commonly contains high concentration of NH4+ and PO43-. These nutrients can cause eutrophication and unpleasant odor problem if untreated properly. By adding some minerals, the nutrients can be recovered in the form of immiscible powder called struvite. Struvite pre...

Full description

Saved in:
Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2020-04, Vol.778 (1), p.12136
Main Authors: Sreyvich, S, Petrus, H T B M, Purnomo, C W
Format: Article
Language:English
Subjects:
Abattoirs
Environmental impact
Eutrophication
Fertilizers
Magnesium chloride
Nutrients
Recovery
Soil pollution
Soil water
Wastewater treatment
Water pollution
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Poultry slaughterhouse wastewater commonly contains high concentration of NH4+ and PO43-. These nutrients can cause eutrophication and unpleasant odor problem if untreated properly. By adding some minerals, the nutrients can be recovered in the form of immiscible powder called struvite. Struvite precipitation process for nutrients recovery from waste sources is beneficial not only providing slow-releasing and high-quality fertilizer but also reducing soil and water pollution from rich-nutrients wastewater. Three parameters in struvite precipitation will be observed in this study which are pH, temperature, and PO43-/Mg2+ molar ratio. The optimum conditions obtained based on the highest removal efficiency of phosphate (99.3%) and ammonium (98.1%) are PO43-/Mg2+ ratio of 1:3; pH of 9.0; and temperature at 30°C. Meanwhile for kinetic study, the temperature increase will reduce the rate constant (k) value, while increasing pH tend to increase k values. The obtained powder of struvite has been confirmed by X-Ray diffraction (XRD) with expected impurity of MgCl2 due to the excess usage during struvite precipitation process. This study is applicable for wastewater treatment plant which not only treating wastewater but also producing eco-friendly fertilizers.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/778/1/012136