Effect of the aeration system on water quality parameters in a biofloc system

Twelve water quality parameters are included: temperature, oxygen concentration, oxygen saturation, pH, total dissolved solids, electrical conductivity, ammonium, nitrite, nitrate, alkalinity, orthophosphates and settleable solids. Data were collected for 12 weeks from 6 tanks, where 3 tanks were equipped with splash aeration equipment and 3 tanks were equipped with blower equipment, each aerator with 1 hp of power.
Biofloc technology (BFT) is an alternative for intensive production of aquatic organisms. During BFT implementation, aeration systems are mandatory. The objective of
this work was to evaluate the effects of two aeration types: splash (SPL) and blower (BLW) on the productive performance and water quality parameters during 90 days in the juvenile phase of red tilapia (Oreochromis sp.) grown in a commercial BFT farm. No differences were observed on zootechnical parameters, while water quality parameters showed that dissolved oxygen and oxygen saturation were significantly higher for the SPL group, and therefore are more adequate for the production of red tilapia.

本数据集包含十二项水质参数：水温、溶解氧浓度、氧饱和度、pH值、总溶解固体、电导率、铵、亚硝酸盐、硝酸盐、碱度、正磷酸盐以及沉降固体。数据收集自六个水族箱，历时12周，其中三个水族箱配备了喷溅式增氧设备，另外三个水族箱配备了鼓风机增氧设备，每个增氧设备功率为1马力。生物絮团技术（BFT）是水生生物集约化生产的一种替代方案。在BFT实施过程中，增氧系统是必需的。本研究的目的是评估两种增氧方式——喷溅式（SPL）和鼓风机式（BLW）——在商业BFT农场中养殖的幼年红罗氏鱼（Oreochromis sp.）的90天内对生产性能和水质参数的影响。在养殖技术参数方面未观察到差异，而水质参数显示，SPL组的溶解氧和氧饱和度显著更高，因此更适合红罗氏鱼的生产。