Sustainability of growth in the Korean manufacturing sector
In: Pacific Economic Papers, 279
11 results
Sort by:
In: Pacific Economic Papers, 279
World Affairs Online
In: Man: the journal of the Royal Anthropological Institute of Great Britain and Ireland, Volume 19, Issue 1, p. 173
In: Waste management: international journal of integrated waste management, science and technology, Volume 78, p. 509-520
ISSN: 1879-2456
In: Waste management: international journal of integrated waste management, science and technology, Volume 60, p. 322-328
ISSN: 1879-2456
In: Waste management: international journal of integrated waste management, science and technology, Volume 148, p. 22-32
ISSN: 1879-2456
In: BITE-D-23-05047
SSRN
In: CSITE-D-21-02006
SSRN
In: https://www.sciencedirect.com/science/article/pii/S0304389419306673
Human urine is a unique solution that has the right composition to constitute both a severe environmental threat and a rich source of nitrogen and phosphorous. In fact, between 4-9% of urine mass consists of ions, such as K+, Cl-, Na+ or NH4+. Because of its high ionic strength, urine osmotic pressure can reach values of up to 2000 kPa. With this in mind, this work aimed to study the effectiveness of real urine as a novel draw solution for forward osmosis. Water flux, reverse nitrogen flux and membrane fouling were investigated using fresh or hydrolysed urine. Water flux as high as 16.7 ± 1.1 L.m-2. h-1 was recorded using real hydrolysed urine. Additionally, no support layer membrane fouling was noticed in over 20 hours of experimentation. Urine was also employed to dewater a Chlorella vulgaris culture. A fourfold increase in algal concentration was achieved while having an average flux of 14.1 L.m-2. h-1. During the algae dewatering, a flux decrease of about 19% was noticed; this was mainly due to a thin layer of algal deposition on the active side of the membrane. Overall, human urine was found to be an effective draw solution for forward osmosis. ; This research was supported by the National Research Foundation of Korean Grant funded by the Korean Government (MSIP) (No. NRF-2015R1A5A7037825) and by the Australian Research Council through Future Fellowship (FT140101208). HY and CL are grateful for the support of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) through the "Human Resources Program in Energy Technology" project (No. 20164030201010) funded by the Ministry of Trade, Industry and Energy, Republic of Korea.
BASE
In: Pacific affairs: an international review of Asia and the Pacific, Volume 55, Issue 4, p. 703
ISSN: 1715-3379
In: Environmental science and pollution research: ESPR, Volume 20, Issue 9, p. 6646-6657
ISSN: 1614-7499