College of Water Conservancy and Civil Engineering, China Agricultural University, Beijing, People's Republic of China.
J Air Waste Manag Assoc. 2013 Oct;63(10):1205-11. doi: 10.1080/10962247.2013.812815.
Spraying slightly acidic electrolyzed water (SAEW) has been considered as a potential approach to reduce airborne bacteria in laying-hen houses. In this study, the effects of spraying SAEW on airborne bacterial reduction were investigated in a laying-hen house as compared with using diluted didecyl dimethyl ammonium bromide (DDAB). Averaged air temperature reduced by approximate 1 degrees C and average relative humidity increased by 3% at a stable ventilation rate (about 2.5 m3 hr(-1) per bird) in the laying-hen house 30 min after spraying (120 mL m(-2)). Compared with the control without spraying, the airborne bacterial concentration was reduced by about 0.70 and 0.37 log10 colony-forming units (CFU) m(-3) in the 4 hr after spraying 120 mL m(-2) SAEW (available chlorine concentration [ACC] of 156 mg L(-1)) and diluted DDAB (active compound concentration of 167 mg L(-1)), respectively. Compared with spraying diluted DDAB, spraying SAEW was determined to be more effective for reducing airborne bacterial in laying-hen houses. The effects of spraying SAEW and diluted DDAB on airborne bacterial reduction in the laying-hen house increased with the increasing available chlorine concentrations for SAEW (156, 206, 262 mg L(-1)) and increasing active compound concentrations for diluted DDAB (167, 333, 500 mg L(-1)), respectively. Spraying SAEW and diluted DDAB with two levels of spraying volumes (120 and 90 mL m(-2)) both showed significant differences on airborne bacterial reduction in the laying-hen house (P < 0.05).
喷洒微酸性电解水（SAEW）已被认为是减少产蛋鸡舍空气中细菌的一种潜在方法。在这项研究中，与使用稀释的双癸基二甲基氯化铵（DDAB）相比，研究了在产蛋鸡舍中喷洒 SAEW 对空气中细菌减少的影响。在稳定的通风率（约每只鸡 2.5 立方米/小时）下，喷洒后 30 分钟，鸡舍内平均空气温度降低约 1 摄氏度，平均相对湿度增加 3%（喷洒 120 毫升/平方米）。与未喷洒的对照相比，喷洒 120 毫升/平方米的 SAEW（有效氯浓度[ACC]为 156 毫克/升）和稀释的 DDAB（有效化合物浓度为 167 毫克/升）后 4 小时，空气中的细菌浓度分别降低了约 0.70 和 0.37 对数 10 菌落形成单位（CFU）/立方米。与喷洒稀释的 DDAB 相比，喷洒 SAEW 被确定为更有效地减少产蛋鸡舍中的空气中细菌。喷洒 SAEW 和稀释的 DDAB 对产蛋鸡舍中空气中细菌减少的影响随着 SAEW 的有效氯浓度（156、206、262 毫克/升）和稀释的 DDAB 的有效化合物浓度（167、333、500 毫克/升）的增加而增加。以两种喷洒量（120 和 90 毫升/平方米）喷洒 SAEW 和稀释的 DDAB 均对产蛋鸡舍中的空气中细菌减少有显著差异（P < 0.05）。
