Possibility to eliminate emission of odor from pig manure treated using AMAK filtration method

AbstractOdor concentration in samples of gases taken from above the surface of raw pig manure and also the manure treated using a filtration method was measured. It was found out that pig manure mineralization and the filtration technology (the AMAK process) enables almost complete elimination of odor emission from post-filtration sludge and filtrate. The grade of treated manure neutralization made with the use of lime milk was found to be the most significant parameter affecting intensity of odor emission when applying a filtration method. An increase in pH value from 8.0 to 10.5 caused reduction of odor concentration by 99.1 and 99.5% in the samples taken from above the filtrate and the post-filtration sludge, respectively, comparing to the odor concentration found in the samples taken from above raw pig manure. For the tested samples, which were taken from above the fertilizer produced on the basis of post-filtration sludge coming from treated pig manure, the lowest odor concentration was 97% less than...

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