Bratanov V, Penchev P, Dinev P
Vet Med Nauki. 1977;14(2):45-9.
Investigations revealed that under the conditions prevailing in the districts of Sofia and .pernik Ascaris suum and Trichocephalus suis eggs remained viable at the conventional storage of liquid manure on the large farms for about a year, and Fasciola hepatica and Paramphistomum sp. eggs--for 2 to 3 months. The methods of electrocoagulation and electroflotation could be employed with success in the cleansing and rendering harmless of the sewage waters after the preliminary treatment with calcium hydroxide. In terms of stabilizing the process, enhancing the cleansing effect and harmlessness, and lowering the use of electrical energy better results are obtainable with the use of pulsating current and constant current perdiodically changing its polarity.
调查显示，在索非亚和佩尔尼克地区的现有条件下，大型农场常规储存液体粪便时，猪蛔虫和猪鞭虫的虫卵可存活约一年，肝片吸虫和同盘吸虫属的虫卵可存活2至3个月。在用氢氧化钙进行预处理后，电凝和电浮选方法可成功用于净化污水并使其无害化。在稳定处理过程、增强净化效果和无害化程度以及降低电能消耗方面，使用脉动电流和定期改变极性的恒定电流可取得更好的效果。
