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首页> 外文期刊>Chemical and Biochemical Engineering Quarterly >Effects of Inhibitory Factor on Uptake Rate of Ammonia-Nitrogen with Sterile UIva sp. for Water Quality Control of Intensive Shrimp Culture Ponds
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Effects of Inhibitory Factor on Uptake Rate of Ammonia-Nitrogen with Sterile UIva sp. for Water Quality Control of Intensive Shrimp Culture Ponds

机译：抑制因子对无菌UIva sp。氨氮吸收速率的影响虾养殖池水质控制

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摘要

Ammonia-nitrogen uptake by sterile Ulva sp. was studied for the control of culture pond water of intensive shrimp farming. The uptake rates were measured by batch and semi-continuous operations, and analyzed with the Michaelis-Menten model of uncompetitive inhibition. For the batch uptake operations, the Michaelis-Menten parameters were estimated, and the maximum rate and Michaelis constants were estimated as 3.4 × 10~(-2) kg kg~(-1) h~(-1) and 5.5 × 10~(-3) kg m~(-3), respectively. The inhibitory factor increased with the uptake time and with the decrease of the seaweed density. In the cases of semi-continuous operations, the seaweed could continuously treat with the model farming culture solution. Although the ratio of the seaweed density relative to the rate of ammonia-nitrogen generation should be appropriately adjusted to keep lower inhibitory factor in the seaweed, the ammonia-nitrogen concentration could be maintained at a relatively low level during operation. Then the ammonia-nitrogen uptake by the alga water was roughly simulated and operation with moderate density of the algae in the pond could maintain the ammonia-nitrogen concentration at a sufficiently low level in the shrimp farming pond. The suggested treatment process might be attractive to control pond water quality for intensive shrimp farming.
机译：无菌Ulva sp。吸收氨氮。研究了对虾精养养殖池塘水的控制。通过分批和半连续操作测量摄取率，并用非竞争性抑制作用的Michaelis-Menten模型进行分析。对于批处理操作，估计了Michaelis-Menten参数，最大速率和Michaelis常数估计为3.4×10〜（-2）kg kg〜（-1）h〜（-1）和5.5×10〜 （-3）kg m〜（-3）。抑制因子随摄取时间的增加和海藻密度的降低而增加。在半连续作业的情况下，海藻可以使用典型的农业养殖解决方案进行连续处理。尽管应适当调节海藻密度相对于氨氮生成速率的比率以保持较低的海藻抑制因子，但在操作过程中氨氮浓度可保持在较低水平。然后粗略地模拟了藻类水吸收氨氮的过程，在池塘中藻类密度适中的情况下，可以将虾养殖池中的氨氮浓度维持在足够低的水平。建议的处理工艺可能对控制集约化虾养殖池塘的水质具有吸引力。

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