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題 名 | 以濁度計量化立體式九孔養殖池固形物濃度之研究=Study of Using Turbidimeters to Quantify Suspended Solids Concentration in Small Abalone Sulculus Diversicolor Multilayer Culture Pond |
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作 者 | 侯文祥; 侯棋燐; | 書刊名 | 農業工程學報 |
卷 期 | 48:2 2002.06[民91.06] |
頁 次 | 頁32-42 |
分類號 | 439.61 |
關鍵詞 | 濁度; 固形物濃度; 粒度; 立體式九孔養殖; Turbidity; Suspended solids concentration; Size distribution; Small abalone multilayer culture; |
語 文 | 中文(Chinese) |
中文摘要 | 近六年內放養密度增加至2.6倍,而換肉效率並未提高的流水式立體式九孔養殖法造成池水中殘餌及排泄物累積速度大增,大量換水的養殖法影響沿岸海域生態日趨明顯。本研究以宜蘭縣一流水式養殖池為對象,比較三種光學式濁度計的儀器感應特徵,率定濁度讀值與固形物濃度之關係,並探討氣泡、流速等水管理因子對濁度計測的影響以及對於水中有機與無機固形物種類別與粒徑別之感應特性等,以率定出日後可發展適用於九孔池固形物自動監測系統的濁度與固形物濃度關係式。研究結果顯示,兩種無法發展成自記系統的濁度計中,以濁度計Model 2100P對九孔池的有機固形物之感應靈敏度最高,適合作為現場檢測使用;而可自記的濁度計Model OBS-3的感應效果佳,率定得適用於九孔池的濁度(FTU, Y)與固形物濃度(mg l⁻¹, X)關係式為線性Y=0.5451X+7.462,R²=0.997。日後將可製作一控制器,連接濁度感測計、電壓記錄器與水處理設備,成為可自記固形物濃度且即時去除的水處理自動化管理系統,以開發循環水立體式九孔養殖法。 |
英文摘要 | As a result of raise of breeding density and the same food conversion rate in small abalone multilayer culture, the accumulation rate of residues and feces increased in recent years. Water samples for laboratory calibration of three optical turbidimeters were collected from a multialyer culture pond in I-Lan. The linearity between turbidity and suspended solids concentration, effects of bubbles and velocity on turbidity, and different performance in organic or inorganic solid were investigated in order to establish the relationship between turbidity and suspended solids concentration in small abalone culture ponds. The results showed that turbidimeter Model 2100P, which is unable to automatically record data, is the most sensitive to suspended solids in abalone ponds and is suitable for field measurement. Another turbidimeter, Model OBS-3, which is able to equipped as an automated recorder, has a linear regression relationship between turbidity (FTU,Y) and suspended solids concentration (mg l⁻¹,X) : Y=0.5451X+7.462, R²=0.997. For further application to recycled water culture, a combination of controller, turbidimeter, data logger and water treatment device is proposed to supervise suspended solids concentration and provide real time solid removal. |
本系統中英文摘要資訊取自各篇刊載內容。