造價通
更新時間：2025.01.05
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.

PC板溫室內(nèi)立體育秧溫度和光照對秧苗生長情況的影響分析

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主要以重慶PC板溫室內(nèi)多層立體育秧架溫度和光照對秧苗生長情況的影響為目的,首先對PC板溫室內(nèi)多層育秧架溫度數(shù)據(jù)進(jìn)行記錄并分析,其次針對光照對秧苗生長情況的影響試驗(yàn)展開分析。研究結(jié)果表明:光照強(qiáng)度是造成各層之間溫度差異的原因之一;溫度對秧苗的株高影響不顯著;光照對秧苗的株高影響顯著(相關(guān)系數(shù)0.576),且對秧苗的莖粗影響極顯著(相關(guān)系數(shù)0.814)。以此為基礎(chǔ),對西南地區(qū)工廠化立體育秧提供參考。

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