Plachý P, Juris P, Plachá I, Venglovský J
Parasitological Institute, Slovak Academy of Science, Kosice, Slovak Republic.
Vet Med (Praha). 1996 Aug;41(8):255-9.
Hydrated lime was lethal to the strain of Salmonella typhimurium (Sk 14/39) after 60 min of exposure. In the control without addition of hydrated lime this strain was still viable after 168 hours, counting 6.1 x 10(5) pathogens/l ml sludge. 168-hr disinfection of primary sludges with 10 g/l hydrated lime showed no significant reduction in the viability of Ascaris suum eggs. In three experiments, the number of viable eggs was reduced only by 3.6%. Indicator microorganisms, except psychrophilic ones that survive for only 24 hr, were destroyed after 60 min of exposure. The temperature of stabilized sludges did not vary considerably during experiments, ranging between 21 and 25 degrees C. With the addition of Ca(OH)2, sludge pH increased to the values for COD, organic matters and total nitrogen were reduced throughout the experiments. The values for sludge dry residues remained unchanged.
水合石灰在接触60分钟后对鼠伤寒沙门氏菌菌株（Sk 14/39）具有致死性。在未添加水合石灰的对照中，该菌株在168小时后仍存活，每毫升污泥中有6.1×10⁵个病原体。用10克/升水合石灰对初沉污泥进行168小时消毒后，猪蛔虫卵的存活率没有显著降低。在三个实验中，存活卵的数量仅减少了3.6%。指示微生物，除了仅存活24小时的嗜冷微生物外，在接触60分钟后被消灭。在实验过程中，稳定污泥的温度变化不大，在21至25摄氏度之间。添加Ca(OH)₂后，污泥pH值升高，整个实验过程中化学需氧量、有机物和总氮含量降低。污泥干残渣的值保持不变。
