利用新型高温好氧堆肥器提高鸡粪谷壳有机肥肥效

Translated title of the contribution: Effect of new high temperature aerobic composting device on maturation of chicken manure and rice chaff

Chen Yan, Leipeng Cao, Yuhuan Liu, Rongsheng Ruan, Wujian Ning, Xiaocheng Liu, Rui Li

Research output: Contribution to journalArticlepeer-review

Abstract

In view of the problems of long composting time and serious environmental pollution in traditional composting device, the development of rapid, odorless and environmentally-friendly composting device is great significance for promoting livestock manure into organic fertilizer. The new high-temperature aerobic composting device mainly included four parts: control panel, fermenter (50 L active volume), and air compressor ventilation system (0.15 m3·s−1 discharge capacity and 40 L gas tank capacity), ammonia absorption system (188 L volume, patterns of internal ladder ring absorption), which was used to produce chicken manure-rice chaff organic fertilizer. The fertilizer efficiency of recovered magnesium ammonium phosphate (r-MAP) in chicken manure-rice chaff organic fertilizer was investigated by pot experiments. Under the optimal conditions for 40 d composting of chicken manure and rice chaff (C/N=25), the products showed the black odorless, no harmful flora, and spherical features. Moreover, the nutrients of products were 50.53% organic matter, 1.86% TN, 1.56% TP (P2O5), 1.59% TK (K2O), which basically met the national organic fertilizer (NY525-2012). The yield and polysaccharide content of water spinach obtained from chicken manure and rice chaff organic fertilizer were higher than that of chemical fertilizer. The recovery of magnesium ammonium phosphate (MAP) from ammonia recovery system could effectively improve the overall fertilizer efficiency of organic fertilizer. The results will provide a theoretical basis for the further popularization and application of the new high temperature aerobic composting device.

Translated title of the contributionEffect of new high temperature aerobic composting device on maturation of chicken manure and rice chaff
Original languageChinese (Traditional)
Pages (from-to)1103-1111
Number of pages9
JournalChinese Journal of Environmental Engineering
Volume15
Issue number3
DOIs
StatePublished - Mar 26 2021

Bibliographical note

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Keywords

  • Aerobic composting
  • Ammonia recovery
  • Chicken manure
  • Magnesium ammonium phosphate
  • Organic fertilizer
  • Rice chaff

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