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Although traditional rice-fish farming (involving extensive aquaculture and low fish yields) can supply food and protect the environment, the economic viability and environmental effects are unknown for intensive rice-aquaculture systems that use high quantities of feed to produce high fish yields. Here, we studied an intensive, soft-shelled turtle (Pelodiscus sinensis) farm to determine whether an...
Magnesium ammonium phosphate(MAP) crystallization method is a new and high-efficiency technique to remove ammonia nitrogen and phosphorus from wastewater. The MAP can be recovered and used as slow-released fertilizer or industrial chemical, and the wastewater recycling is achieved by this method. There are a few studies of MAP crystallization reactor at home and abroad. In this paper, the mechanism,...
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