Effects of Temperature and Substrate Composition on Aerobic Composting of Urban Landscape Waste and Chicken Manure Using Water Bath Method

Yang Haijun; Xu Yunhai; Xiao Wei; Liu Yabin; Jin Hongyu; Lan Shile; Tan Ju

doi:10.13961/j.cnki.stbctb.2019.06.006

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Effects of Temperature and Substrate Composition on Aerobic Composting of Urban Landscape Waste and Chicken Manure Using Water Bath Method

- Effects of Temperature and Substrate Composition on Aerobic Composting of Urban Landscape Waste and Chicken Manure Using Water Bath Method
- Bulletin of Soiland Water Conservation Vol. 39, Issue 6, Pages: 35-43(2019)
- 作者机构：
  
  1. 湖南农业大学植物保护学院,湖南,长沙,410128
  2. 湖南锦佳环保科技有限公司,湖南,长沙,410007
  3. 湖南农业大学生物科学技术学院,湖南,长沙,410128
  4. 长沙市环境监测中心站,湖南,长沙,410001
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2019.06.006
  CLC：
- Published：2019
- 稿件说明：
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Yang Haijun, Xu Yunhai, Xiao Wei, et al. Effects of Temperature and Substrate Composition on Aerobic Composting of Urban Landscape Waste and Chicken Manure Using Water Bath Method[J]. Bulletin of Soiland Water Conservation, 2019, 39(6): 35-43.
DOI：

Yang Haijun, Xu Yunhai, Xiao Wei, et al. Effects of Temperature and Substrate Composition on Aerobic Composting of Urban Landscape Waste and Chicken Manure Using Water Bath Method[J]. Bulletin of Soiland Water Conservation, 2019, 39(6): 35-43. DOI： 10.13961/j.cnki.stbctb.2019.06.006.

摘要

[目的] 探究温度和物料配比对城市园林绿化废物与鸡粪水浴法好氧堆肥的影响，为大规模好氧堆肥提供技术指导与理论基础。[方法] 以恒温水浴锅、空气泵、气体转子流量计、温度计、发酵瓶与洗气瓶为材料，构建水浴法温控好氧堆肥装置，开展城市园林绿化废物与鸡粪质量比分别为2：3，2：1，3：1，5：1（分别命名A，B，C，D组）水浴法堆肥试验。[结果] 城市园林绿化废物与鸡粪发酵堆肥微生物代谢活性最佳温度在50～55℃之间，当温度≥55℃，微生物对有机物的降解受到明显抑制。从温度变化看，A—D组堆肥均经历了升温期、高温期、降温期和中温期。A—D组堆肥氮素损失率分别为47.11%±0.55%，63.82%±1.05%，53.43%±0.71%和36.38%±0.83%，D组堆肥的保氮量最高。从种子发芽率与发芽指数看，A—D组堆肥产物发芽率分别为96.7%±2.11%，96.7%±2.25%，84.4%±1.98%和96.7%±2.06%，堆肥产物均达到腐熟度评价标准（≥80%）。[结论] 城市园林绿化废物与鸡粪水浴法好氧堆肥最佳温度为50～55℃，D组堆肥的保氮量最高，4组堆肥产物均达到腐熟度评价标准。

Abstract

[Objective] The effects of temperature and material ratio on urban landscaping waste and chicken manure water bath aerobic composting were studied in order to provide technical guidance and theoretical basis for large-scale aerobic composting.[Methods] A water bath temperature-controlled aerobic composting device was constructed with water bath incubator

air pump

gas rotameter

thermometer

fermentation bottle and a gas bottle. Water bath composting with different ratios of urban gardening waste to chicken manure of 2:3

2:1

3:1

and 5:1 (named A

and D

respectively) was set.[Results] The optimal temperature range of microbial metabolic activity was 50~55℃. The degradation of organic matter by microbes was significantly inhibited at temperature ≥ 55℃. All four treatments experienced the heating phase

high temperature phase

cooling and medium temperature phases. The nitrogen loss rate in treatments A-D was 47.11%±0.55%

63.82%±1.05%

and 53.43%±0.71%

and 36.38%±0.83%

respectively. Obviously

the highest nitrogen retention was achieved in treatment D. The seed germination rate and germination index were also evaluated. The germination rate of composting products in treatments A-D was 96.7%±2.11%

96.7%±2.25%

84.4%±1.98% and 96.7%±2.06%

respectively

and all of which reached the criteria of maturity (≥ 80%).[Conclusion] The optimum temperature of urban landscaping waste and aerobic compost with chicken manure water bath was 50~55℃

and the nitrogen retention was the highest in group D. The compost products of the four groups all reached the evaluation standard of maturity.

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