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利用水产养殖固体颗粒物生产絮体,研究可生物降解聚合物(BDPs)PCL为其提供碳源的可行性和效率。启动阶段,养殖固体颗粒物有72.38%±3.87%的氮素转化为异养细菌的生物量,细菌产量(m(VSS)/m(养殖固体颗粒物))为(447.5±23.90)g/kg,絮体粗蛋白含量(m(粗蛋白)/m(VSS))最高达到(541.25±59.46)mg/g。DOC不断增加,ρ(DOC)/ρ(NH_3-N)自第19天起达到10以上。絮体对于养殖废水、养殖固体颗粒物的无机氮转化能力分别为9.72±6.20、1.71±0.83g/(m~3·d)。絮体粗蛋白含量在进水后达到(425.38±10.31)mg/g,进泥后达到(431.93±20.55)mg/g。根据碳源的用量和成本价格可知PCL价格较为经济,添加过程更简便,具有一定的可行性。
The use of aquaculture solid particles to produce flocs to study the feasibility and efficiency of biodegradable polymers (BDPs) PCL to provide carbon sources for them. During the start-up phase, the biomass of 72.38% ± 3.87% of the nitrogenous bacteria transformed into heterotrophic bacteria in the cultured solid particles was (447.5 ± 23.90) g / kg and the bacterial yield (mVSS / m) Body crude protein content (m (crude protein) / m (VSS)) reached a maximum of (541.25 ± 59.46) mg / g. DOC continues to increase and ρ (DOC) / ρ (NH_3-N) reaches above 10 from the 19th day. Flocculation For farming wastewater, the inorganic nitrogen conversion ability of cultured solid particulate matter was 9.72 ± 6.20 and 1.71 ± 0.83g / (m ~ 3 · d), respectively. The crude protein content of flocs reached (425.38 ± 10.31) mg / g after influent, reaching (431.93 ± 20.55) mg / g after entering the sludge. According to the amount of carbon sources and cost prices PCL price is more economical, the addition process is more simple, with a certain feasibility.