000			a
999			_c9151 _d9151
003			OSt
005			20190530112903.0
008			190530b xxu||||| |||| 00| 0 eng d
040			_aAIKTC-KRRC _cAIKTC-KRRC
100			_98951 _aAl-obaidi, Muntasir
245			_aMixing Efficiency of Compost Tea Brewing Machines with Various Airlift Pump Air Jacket Structures and Air Injection Pressures
250			_aVol. 100(1), March
260			_aNew York _bSpringer _c2019
300			_a111-116p.
520			_aCompost tea is an organic agriculture product that is used as a bio-fertilizer and biopesticide in modern agriculture. It is produced from compost using various brewing machines. The compost must be well mixed with water to support optimal extraction of nutrients and microorganisms. Therefore, in this study, the mixing efficiencies of brewing machines equipped with six different structured airlift pumps operating at six different air injection pressures (8, 9, 10, 12, 14, and 16 kPa) were investigated via comparative trials of the compost liquid circulation and the electrical conductivity and data analysis. Designs with total hole areas of 0.09 cm2 achieved the highest compost liquid mass flow rates and good mixing efficiencies. In addition, air mass flow rates increased with the number of air injection holes at fixed pressures. Together, these data indicated that the best air jacket footpiece design in this study was A2, which contained eight holes with diameters of 1.2 mm. This design achieved the highest pump efficiency, mixing time, and liquid compost mass flow at most air pressures. This paper will help designers and manufacturers of this type of machinery.
650		0	_94621 _aCivil Engineering
700			_98952 _aZhang, Tiemin
700			_98953 _aYang, Wenbo
773	0		_x2250-2149 _tJournal of the institution of engineers (India) Series A _dDordrecht Springer
856			_uhttps://link.springer.com/article/10.1007/s40030-018-0330-7 _yClick here
942			_2ddc _cAR