造價通
更新時間:2025.05.31
污水處理中溫度對黑藻生長的影響(英文)

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[Objective] The research aimed to study the influence of temperature on the growth of Hydrilla verticillata in the wastewater treatment process.[Method] By using the single factor experiment design,four temperatures which were 5,15,25 and 35 ℃ were set.The growth situation of H.verticillata under the different temperatures was observed in the treatment process of domestic sewerage.[Result] H.verticillata grew luxuriantly at 35 and 25 ℃.Via the cultivation of 15 days,the plant length,branch number,root number and biomass of H.verticillata respectively increased 2.8 and 1.2 cm,7.0 and 5.9 branches,6.2 and 3.7 roots,21% and 25%,which were all significantly or extremely significant higher than that at 5 ℃.Under the cultivation condition of 15 ℃,H.verticillata grew slowly.The increment of plant length,branch number and root number were higher than that at 5 ℃,but they had no significant difference.[Conclusion] During 5-35 ℃,the higher temperature could promote the growth of H.verticillata in wastewater treatment process.

自啟動溫濕記錄儀的設(shè)計

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本文本介紹了一種小型高精度溫濕度記錄儀的設(shè)計,并詳細(xì)說明了其所采用的自啟動技術(shù),給出了其原理圖和設(shè)計思路,包括單片機、溫濕度傳感器及供電模塊的選型,給出了硬件電路原理及其軟件流程。該系統(tǒng)具有抗干擾能力強,結(jié)構(gòu)靈活的特點。

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