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《Yunnan Chemical Technology》 2018-07
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Effect of water addition amount on pH of cooked material during fermentation of organic fertilizer

Bi Xianlan;Li Hong;Kunming Erkang Technology Co.,Ltd.;  
This experiment analyzed the effects of different water additions on the fermentation process of organic fertilizer and the p H of the obtained ripening material under the same conditions. The results show that the fermentation rate and the results obtained(effects) are quite different due to the difference in the amount of water added. In the fermentation process,the fermentation rate of 40% of the external water is the fastest,the 30% of the external water is added in the next batch,and the 20% external water is 30% slower than the 10%. The amount of water added was slower than 20%,and the pile of 50% of the external water was almost not fermented until the 20 th day,and the temperature rise was slower. Fertilizer fermentation will go through four stages: heating period,high temperature period,cooling period,and stable period. The signs of fermented and decomposed are: 1)The temperature is naturally reduced;2)The mosquitoes and flies are no longer attracted;3)The smell is no longer unpleasant;4)Fertilizer White or grayish white hyphae appear;5)The fertilizer product exhibits a loose agglomerate structure. At the end of the fermentation,the p H of the 10% experimental group was 5.10;the p H of the 20% experimental group was 5.40;the p H of the 30% experimental group was 5.48;the p H of the 40% experimental group was 5.89;and the p H of the 50% experimental group was 6.36. The trend of p H change in the test group was basically the same.
【CateGory Index】: TQ446
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