AIMS@JCU, Australian Institute of Marine Science and School of Marine and Tropical Biology & Centre for Sustainable Tropical Fisheries and Aquaculture, James Cook University, Townsville, Queensland, Australia.
Bioresour Technol. 2013 Mar;131:113-20. doi: 10.1016/j.biortech.2012.12.094. Epub 2012 Dec 20.
Land-based aquaculture produces suspended solids in culture pond and settlement pond waters that could be harvested as a bioresource. Suspended solids were quantified, characterised and harvested from these two sources to assess their suitability for conversion to bioproducts. The suspended solids of settlement ponds were less concentrated (87.6±24.7mgL(-1)) than those of culture ponds (131.8±8.8mgL(-1)), but had a higher concentration of microalgae (27.5±4.0%) and consequently higher particulate organic carbon (24.8±4.7%) and particulate nitrogen (4.0±0.8%). The microalgal community also differed between sources with a higher concentration of fatty acids in the biomass from settlement ponds. Consequently, biochar produced from biomass harvested from settlement ponds was higher in organic carbon and nitrogen, with a lower cation exchange capacity. In conclusion, we characterised a renewable and potentially valuable bioresource for algal bioproducts derived from suspended solids in intensive land-based aquaculture.
陆基水产养殖会在养殖池和沉淀池水中产生悬浮固体，这些悬浮固体可以作为生物资源进行收获。本研究从这两个来源中定量、表征和收获悬浮固体，以评估其转化为生物制品的适宜性。与养殖池相比（131.8±8.8mgL(-1)），沉淀池的悬浮固体浓度较低（87.6±24.7mgL(-1)），但微藻浓度更高（27.5±4.0%），因此颗粒有机碳（24.8±4.7%）和颗粒氮（4.0±0.8%）更高。微藻群落也因来源不同而不同，来自沉淀池的生物量中脂肪酸浓度更高。因此，从沉淀池收获的生物质制成的生物炭的有机碳和氮含量更高，阳离子交换能力更低。总之，我们从集约化陆基水产养殖的悬浮固体中鉴定出了一种可再生且有潜力的有价值的藻类生物制品的生物资源。
