about us | careers | terms & conditions | intranet | extranet | sitemap | contact us
   
Skip Navigation Links
Home
Skip Navigation Links
Knowledge Hub
Skip Navigation Links
Research
Skip Navigation Links
Resources & Tools
Skip Navigation Links
Learning
Skip Navigation Links
Events
Skip Navigation Links
News & Media
Skip Navigation Links
FET Water
Skip Navigation Links
SCM
Skip Navigation Links
Mine Water Atlas
Login | Register
Go Search
     
Nutrient and energy recovery from sewage: towards an integrated approach
Expanded Title:The transition to a low-carbon and resource-efficient economy has begun, also in South Africa. Wastewater is increasingly viewed as a “water-carried waste”, presenting opportunities for recovery of nutrients and energy, as well as water. Ecologically and economically more sustainable sanitation and wastewater management solutions are being explored and implemented. Amongst the sewage-borne resources, phosphorus is an important, non-substitutable nutrient for all life forms, particularly in the growth of plants, and is therefore essential in ensuring universal food security. Human activities have disturbed the natural phosphorus cycle and remain heavily dependent on mining of non-renewable rock phosphate. As a result, there is a particular interest in phosphorus recovery. This technology transfer report firstly explores phosphate recovery possibilities from wastewater, relative to its potential South African market and developments in wastewater treatment. It is structured to address the following aims: • Investigate available nutrient recovery technologies and their products, focusing on phosphate; • Describe a number of cases that have adopted nutrient recovery and assess these from a sustainability perspective; • Investigate the characteristics of recoverable fertilizer products and obtain viewpoints of experts along the fertilizer-produce value chain on likely social acceptance; • Present and analyse two cases of how a nutrient recovery process could be incorporated together with energy recovery via anaerobic digestion.
Date Published:01/06/2016
Document Type:Research Report
Document Subjects:R & D - Water and Energy
Document Format:Report
Document File Type:pdf
Research Report Type:Technical
WRC Report No:TT 661/16
ISBN No:978-1-4312-0786-2
Authors:Sikosana M; Randall DG; Petrie DJ; Oelofse M; Russo V; von Blottnitz H
Project No:K5/2218
Originator:WRC
Organizations:University of Cape Town; Process Engineering, Eawag Dübendorf, Switzerland; Aurecon SA; University of Copenhagen
Document Size:1 159 KB
Attachments:TT 661 CD - Extended Report.pdf
TT 661 CD - Technical Report.pdf
Copyright 2017 - Water Research Commission Designed By: Ceenex