Arid
DOI10.1016/j.agwat.2010.12.009
Reuse of domestic wastewater treated in macrophyte ponds to irrigate tomato and eggplant in semi-arid West-Africa: Benefits and risks
Akponikpe, P. B. Irenikatche1,2; Wima, Koffi2; Yacouba, Hamma2; Mermoud, Andre3
通讯作者Akponikpe, P. B. Irenikatche
来源期刊AGRICULTURAL WATER MANAGEMENT
ISSN0378-3774
EISSN1873-2283
出版年2011
卷号98期号:5页码:834-840
英文摘要

The scarcity of freshwater resources is a critical problem in semi-arid zones and marginal quality water is increasingly being used in agriculture. This paper aimed at evaluating the physico-chemical and biological risks on irrigated soils and fruits of macrophyte treated wastewater (TWW), the nutrients supply, and the effect on tomato and eggplant production in semi-arid Burkina Faso. During three years of experiments, treated wastewater was used, with fresh water as control, in combination with or without mineral fertilizer application at recommended rate (140 kg N/ha + 180 kg P2O5/ha + 180 kg K2O/ha). The study revealed that the treated wastewater provided variable nutrients supply depending on year and element. The treated wastewater without mineral fertilizer improved eggplant yield (40% in average) compared to the freshwater. Both crops responded better to mineral fertilizer (52% for tomato and 82% for eggplant) and the effects of the treated wastewater and fertilizer were additive. As the N supply of TWW was very unsteady (8-227% of crop need), and P2O5 supply did not satisfy in whole crop need (3-58%) during any of the three years of experiment, we recommended that moderate N and P2O5 fertilizers be applied when irrigating with TWW in semi-arid West-Africa. On the contrary, the K2O supply was more steady and close to crop requirement (78-126%) over the three years of experiment and no addition of K fertilizer may be needed when irrigated with TWW. Faecal coliforms and helminth eggs were observed in treated wastewater and irrigated soils at rate over the FAO and WHO recommended limits for vegetable to be eaten uncooked. Tomato fruits were observed to be faecal coliform contaminated with the direct on-foliage irrigation with treated wastewater. Our results indicate that treated wastewater can effectively be used as both nutrients source and crop water supply in market gardening in the semi-arid Sub-Saharan West Africa (SSWA) where freshwater and farm income are limiting. Yet consumers should properly cook or disinfect treated-wastewater irrigated vegetables before eating, and market gardeners should also be careful manipulating treated wastewater to avoid direct health contamination in this environment. (c) 2010 Elsevier B.V. All rights reserved.


英文关键词Treated wastewater Irrigation Freshwater Nutrients supply Pathogen health risks Tomato Lycopersicum esculentum Mill. Eggplant Solanum melongena L.
类型Article
语种英语
国家Benin ; Burkina Faso ; Switzerland
收录类别SCI-E
WOS记录号WOS:000288920500011
WOS关键词CONTAMINATION ; GUIDELINES ; URBAN ; ONION
WOS类目Agronomy ; Water Resources
WOS研究方向Agriculture ; Water Resources
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/166907
作者单位1.Univ Parakou UP, Fac Agron FA, Environm Soil Phys & Hydraul Unit PSHE, Parakou, Benin;
2.Inst Int Ingn Eau & Environm 2IE, Ouagadougou 594 01, Burkina Faso;
3.Swiss Fed Inst Technol, Inst Environm Engn, EPFL, ENAC,ECHO,Stn 2, CH-1015 Lausanne, Switzerland
推荐引用方式
GB/T 7714
Akponikpe, P. B. Irenikatche,Wima, Koffi,Yacouba, Hamma,et al. Reuse of domestic wastewater treated in macrophyte ponds to irrigate tomato and eggplant in semi-arid West-Africa: Benefits and risks[J],2011,98(5):834-840.
APA Akponikpe, P. B. Irenikatche,Wima, Koffi,Yacouba, Hamma,&Mermoud, Andre.(2011).Reuse of domestic wastewater treated in macrophyte ponds to irrigate tomato and eggplant in semi-arid West-Africa: Benefits and risks.AGRICULTURAL WATER MANAGEMENT,98(5),834-840.
MLA Akponikpe, P. B. Irenikatche,et al."Reuse of domestic wastewater treated in macrophyte ponds to irrigate tomato and eggplant in semi-arid West-Africa: Benefits and risks".AGRICULTURAL WATER MANAGEMENT 98.5(2011):834-840.
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