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添加剂是指为了加快堆肥进程和提高堆肥产品质量,在堆肥物料中加入的微生物、有机或无机物质。本文通过室内培养与室外堆肥试验,研究不同添加剂对猪粪发酵过程中臭味及氮素损失的影响。结果表明,使用本研究中所采用的添加剂与发酵工艺,可以减少猪粪发酵中氨的挥发、氮素损失与猪粪的恶臭。75%含水量的猪粪经过20d的发酵,可达基本腐熟程度。添加剂可以优化堆肥过程的环境条件,提高微生物活性;加快堆肥的腐熟;减少氮素损失,保持养分含量;调节堆肥中各种营养元素的含量,提高堆肥质量。
Additives are microorganisms, organic or inorganic substances added to the compost material in order to speed up the composting process and to improve the quality of the compost product. In this paper, indoor training and outdoor composting test to study the different additives on pig manure fermentation process of odor and nitrogen loss. The results showed that the use of additives and fermentation process used in this study can reduce ammonia volatilization, nitrogen loss and pig manure odor in pig manure fermentation. Pig manure with 75% water content can reach the level of basic maturity after 20 days of fermentation. Additives can optimize the environmental conditions of compost process, improve microbial activity; accelerate compost composting; reduce nitrogen loss and maintain nutrient content; adjust the content of various nutrients in compost and improve the quality of compost.