溶(rong)(rong)(rong)解(jie)(jie)氧(yang)隨著溫度,氣壓(ya),鹽分(fen)的(de)變化而變化,一般(ban)來說(shuo),溫度越高(gao),溶(rong)(rong)(rong)解(jie)(jie)氧(yang)的(de)鹽分(fen)越大,水(shui)(shui)(shui)中(zhong)(zhong)(zhong)的(de)溶(rong)(rong)(rong)解(jie)(jie)氧(yang)越低(di);氣壓(ya)越高(gao),水(shui)(shui)(shui)中(zhong)(zhong)(zhong)的(de)溶(rong)(rong)(rong)解(jie)(jie)氧(yang)越高(gao)。溶(rong)(rong)(rong)解(jie)(jie)氧(yang)除了被通常(chang)水(shui)(shui)(shui)中(zhong)(zhong)(zhong)硫化物(wu),亞硝酸鹽,亞鐵離子等(deng)還原性物(wu)質(zhi)所消耗(hao)(hao)外,也被說(shuo)中(zhong)(zhong)(zhong)的(de)微生物(wu)的(de)呼吸作用以及(ji)說(shuo)中(zhong)(zhong)(zhong)有機物(wu)質(zhi)被好樣微生物(wu)的(de)氧(yang)化分(fen)解(jie)(jie)所消耗(hao)(hao)。所以說(shuo)溶(rong)(rong)(rong)解(jie)(jie)氧(yang)是水(shui)(shui)(shui)體的(de)治本,是水(shui)(shui)(shui)體自凈能力的(de)表示。天然(ran)水(shui)(shui)(shui)中(zhong)(zhong)(zhong)的(de)溶(rong)(rong)(rong)解(jie)(jie)氧(yang)近于(yu)飽和值9PPM,藻類繁殖旺盛時(shi),溶(rong)(rong)(rong)解(jie)(jie)氧(yang)含量下降。
溶解氧是指溶解于水中(zhong)分子狀(zhuang)態的(de)氧,即水中(zhong)的(de)O2,用(yong)(yong)DO表示。溶解氧是水生生物(wu)純在不可缺少的(de)條(tiao)件。溶解氧的(de)一個(ge)來源(yuan)是水中(zhong)溶解氧未飽(bao)和時,電器中(zhong)的(de)氧氣向(xiang)水中(zhong)深入;另一個(ge)來源(yuan)是水中(zhong)植(zhi)物(wu)通過光合作用(yong)(yong)釋放出(chu)來的(de)氧。
在(zai)線(xian)溶(rong)氧儀使用(yong)溶(rong)解氧測控的重要性(xing)體現在(zai)以下方面(mian):
1、通(tong)過溶解(jie)氧短、中(zhong)、長期變化趨勢,對水(shui)(shui)產養殖(zhi)水(shui)(shui)質狀況進行提前預判,并通(tong)過換水(shui)(shui)、合(he)理使用藥劑對水(shui)(shui)質調控(kong),降低(di)養殖(zhi)風險,優化養殖(zhi)藥劑效果。
2、通(tong)過實時溶解(jie)氧(yang)數據為養(yang)殖戶科學調(diao)控養(yang)殖水環境溶解(jie)氧(yang)提供依據,合理增氧(yang),降低養(yang)殖用電成(cheng)本。
3、通過設備(bei)聯(lian)動(dong)(dong)控制(zhi)裝置(zhi)實(shi)現增(zeng)氧設備(bei)的自動(dong)(dong)開(kai)啟/關閉(bi)及(ji)報警提醒(xing),避(bi)免人工值(zhi)守弊端,降低養殖人工成本(ben)。
4、用戶通過設備顯示窗可直觀看到養殖水環境溶解氧的(de)實時數(shu)據,規避藥劑、試紙間(jian)歇、定(ding)點、定(ding)時檢測弊端。
5、通過(guo)溶解氧(yang)實時數據優化投料(liao)(liao)時間及(ji)投料(liao)(liao)量,優化餌(er)料(liao)(liao)系(xi)數,降(jiang)低養殖(zhi)飼料(liao)(liao)成本。