The scarcity of fresh water in the countries in the Mediterranean Basin makes treated effluent a valuable alternative water source. It is therefore imperative to develop and adapt methods to minimize costs and meet water regulation limits. Pathogens, soluble organic matters, turbidity, color, Giardia, Cryptosporidium and viruses can be removed by Ultra-Filtration (UF) technology, so that almost any natural water supply or wastewater resources can be used as a feed for any industrial process or irrigation. A study was undertaken to evaluate the performance of UF and Reverse Osmosis (RO) membranes for treatment of secondary effluent. The 100 hours performance of the integrated membrane pilot plant proved that: (i) UF membranes are very effective for removing soluble organic particles and control of RO fouling, (ii) permeate quality exceeds the regulations limits for irrigation, (iii) there is a process leaching with RO permeate and secondary effluent in On-Surface Drip Irrigation (ODI) technology, and (iv); irrigation using RO permeate doubles pepper yield compared to secondary effluent irrigation.
|Number of pages||9|
|Specialist publication||International Water and Irrigation|
|State||Published - 1 Jan 2001|