Evolution of temperature and chemical parameters during composting of the pig slurry solid fraction amended with natural zeolite

Bioresource Technology
J VenglovskyD Harichova

Abstract

A 3-month experiment was conducted at a 300 kg scale to observe decomposition processes in pig slurry solids amended with two different doses of natural Slovak zeolite-clinoptilolite (substrates S1 and S2, 1% and 2% of zeolite by weight, respectively) in comparison with the control (unamended solids). The experimental and control substrates were stored outdoors in sheltered static piles at ambient temperatures ranging from 8.0 to 34.7 degrees C. The solid fraction (SF) of pig slurry was obtained by separation on vibration sieves prior to slurry treatment with activated sludge. The initial water content of the SF was 77.1% and no water was added to the piles during the storage. The temperature in the core of the piles was recorded throughout the experiment. By day 3 and 5 of storage (1% and 2% zeolite, resp.), the temperature in the substrates S1 and S2 exceeded 55 degrees C and remained above this level for 15 days while the highest temperature recorded in the control during the experiment was 29.8 degrees C. Samples from the core of the piles were taken periodically to determine pH, dry matter at 105 degrees C (DM), ash (550 degrees C/4 h), ammonia nitrogen (N-NH(4)(+)), nitrate nitrogen (N-NO(3)(-)), total nitrogen (N(t)), to...Continue Reading

References

Dec 1, 1993·Zentralblatt für Veterinärmedizin. Reihe B. Journal of veterinary medicine. Series B·L P Forshell

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Citations

Sep 12, 2015·Environmental Science and Pollution Research International·Junya ZhangYuansong Wei
Sep 13, 2015·Environmental Science and Pollution Research International·Shihua ZhangJun Zheng
Oct 19, 2010·Bioresource Technology·J VillaseñorF J Fernández
Nov 23, 2015·Bioresource Technology·Man Ting ChanJonathan W C Wong
Nov 18, 2015·Journal of Environmental Sciences (China)·Zhiqiang ChenJun Zheng
Mar 21, 2015·Waste Management·Lu Zhang, Xiangyang Sun
Sep 4, 2014·Environmental Science and Pollution Research International·Yu-Qiang YangYu-Yang Long
Apr 8, 2014·Environmental Technology·Ioannis A FotidisGerasimos G Martzopoulos
Jul 28, 2016·Environmental Technology·Jonathan W C WongAmmaiyappan Selvam
Mar 31, 2015·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Omar LatifahNik Muhamad Majid
Jan 15, 2019·Journal of the Air & Waste Management Association·Waqas QasimHyeon Tae Kim
Jun 4, 2017·Environmental Science and Pollution Research International·Mohammad WaqasAbdul-Sattar Nizami
Aug 21, 2019·Waste Management·Mayur Shirish JainAjay S Kalamdhad
Jul 30, 2021·Environmental Science and Pollution Research International·Sadeq Abdullah Abdo Al-KhadherNur Wahidah Azhari

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