TY - JOUR
T1 - Techno-economic viability of innovative membrane systems in water and mass recovery from dairy wastewater
AU - Aydiner, Coskun
AU - Sen, Unal
AU - Topcu, Semra
AU - Ekinci, Didem
AU - Altinay, Aysegul D.
AU - Koseoglu-Imer, Derya Y.
AU - Keskinler, Bulent
PY - 2014/5/15
Y1 - 2014/5/15
N2 - Viability of innovative treatment systems in recovery of water and mass from dairy wastewater was techno-economically investigated. Lab-scale experiments were carried out for water recovery from whey wastewater using two combined membrane processes as forward osmosis (FO)/membrane distillation (MD) and MD/reverse osmosis (RO). Raw whey was concentrated to the solid contents of 21.0% and 25.8% by FO/MD and MD/RO, respectively. Production of commercial whey powders was successfully accomplished by spray drying of the concentrated whey streams. Full-scale costs of both systems were individually estimated using process modeling and cost estimation software. The simulations for a design influent of 100m3/day showed that water can be recovered in sufficient quality to be reused in cheese production and the recovered amount increases up to 66-68% compared to 30% for that of UF/RO system. Besides, both treatment systems yielded a return of 12-13 million $ with annual net profit of about 800,000 $ as competing with UF/RO. Pay-back times of the system investments were determined as satisfactory as under 1 year due to annual revenues of about 3.4 million $ from water recovery and whey powder selling. The innovative systems studied seemed to have conclusively enabled more sustainable dairy waste management with good economic benefits.
AB - Viability of innovative treatment systems in recovery of water and mass from dairy wastewater was techno-economically investigated. Lab-scale experiments were carried out for water recovery from whey wastewater using two combined membrane processes as forward osmosis (FO)/membrane distillation (MD) and MD/reverse osmosis (RO). Raw whey was concentrated to the solid contents of 21.0% and 25.8% by FO/MD and MD/RO, respectively. Production of commercial whey powders was successfully accomplished by spray drying of the concentrated whey streams. Full-scale costs of both systems were individually estimated using process modeling and cost estimation software. The simulations for a design influent of 100m3/day showed that water can be recovered in sufficient quality to be reused in cheese production and the recovered amount increases up to 66-68% compared to 30% for that of UF/RO system. Besides, both treatment systems yielded a return of 12-13 million $ with annual net profit of about 800,000 $ as competing with UF/RO. Pay-back times of the system investments were determined as satisfactory as under 1 year due to annual revenues of about 3.4 million $ from water recovery and whey powder selling. The innovative systems studied seemed to have conclusively enabled more sustainable dairy waste management with good economic benefits.
KW - Dairy wastewater treatment
KW - Innovative membrane technologies
KW - Techno-economic viability
KW - Water recovery
KW - Whey powder production
UR - http://www.scopus.com/inward/record.url?scp=84894073489&partnerID=8YFLogxK
U2 - 10.1016/j.memsci.2014.01.058
DO - 10.1016/j.memsci.2014.01.058
M3 - Article
AN - SCOPUS:84894073489
SN - 0376-7388
VL - 458
SP - 66
EP - 75
JO - Journal of Membrane Science
JF - Journal of Membrane Science
ER -
