Efficiency of Co-compost of Cinnamomum Camphora Branch Compost and Shield Decement

Yang Haijun; Jin Hongyu; Xiao Wei; Xiao Lu; Liu Yabin; Tan Ju

doi:10.13961/j.cnki.stbctb.2020.02.027

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Efficiency of Co-compost of Cinnamomum Camphora Branch Compost and Shield Decement

- Efficiency of Co-compost of Cinnamomum Camphora Branch Compost and Shield Decement
- Bulletin of Soiland Water Conservation Vol. 40, Issue 2, Pages: 188-192(2020)
- 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,410129
  3. 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.2020.02.027
  CLC： X713;S141.4
- Published：2020
- 稿件说明：
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Yang Haijun, Jin Hongyu, Xiao Wei, et al. Efficiency of Co-compost of Cinnamomum Camphora Branch Compost and Shield Decement[J]. Bulletin of Soiland Water Conservation, 2020, 40(2): 188-192.
DOI：

Yang Haijun, Jin Hongyu, Xiao Wei, et al. Efficiency of Co-compost of Cinnamomum Camphora Branch Compost and Shield Decement[J]. Bulletin of Soiland Water Conservation, 2020, 40(2): 188-192. DOI： 10.13961/j.cnki.stbctb.2020.02.027.

摘要

[目的] 实现两种城市固体废弃物盾构脱水泥和香樟树枝堆肥产物同时最大化处置与利用，从而推进园林绿化废弃物与城市盾构污泥资源化产品的应用。[方法] 以盾构脱水泥与香樟树枝堆肥产物分别按照25：1，30：1，20：1，25：1比例（质量比）调配一级、二级草坪种植土与一级、二级花坛种植土，考察4种比例下共堆肥过程中阴离子表面活性剂AES的降解特征以及堆肥发酵产物的主要元素含量与盆栽试验。[结果] 盾构脱水泥与香樟树枝堆肥产物分别以25：1，30：1，20：1，25：1比例堆肥20 d的产物均满足《绿化种植土壤CJ/T340-2016》一级、二级草坪种植土与一级、二级花坛种植土要求。共堆肥明显促进了盾构脱水泥中主要污染物AES的降解，堆肥20 d后产物中AES表面活性剂含量均下降了75.24%以上。盆栽试验结果发现，堆肥终产物一级草坪土与二级草坪土种植马尼拉种子的发芽率分别为92%与86%；一级花坛土中移栽杜鹃与二级花坛土中移栽满天星的成活率均为100%。[结论] 香樟树枝堆肥产物与盾构脱水泥混合共堆肥，不仅有利于盾构脱水泥的环保处置，堆肥后可进行二次利用，而且促进了盾构泥中AES的降解，降低了盾构脱水泥中AES对环境的危害。

Abstract

[Objective] Two kinds of municipal solid waste

shield decement and Cinnamomum camphora branch

were disposed and utilized to the maximum at the same time

in order to promote the application of landscaping waste and urban shield sludge recycling products.[Methods] The products of shield decement and Cinnamomum camphora branch compost were treated with a proportion of 25:1

30:1

20:1

25:1

respectively. Proportion (quality ratio) was used to prepare grade 1 and grade 2 lawn planting soil and grade 1 and grade 2 flower bed planting soil. The degradation characteristics of AES during composting and the nutrient element content of composting fermentation products and pot experiments were then investigated.[Results] The compost products of decement and composting of Cinnamomum camphora branches with the ratios of 25:1

30:1

20:1 and 25:1 (mass ratio) for 20 d met the requirements of grade Ⅰ and Ⅱ lawn planting soil and grade Ⅰ and Ⅱ flower bed planting soil in "green planting soil CJ/T340-2016". Co-composting significantly promoted the degradation of AES

which was the main pollutant in shield decement

and the content of AES surfactant in the products after 20 days of compost decreased by more than 75.24%. The results of pot experiment showed that the germination rate of Manila seeds planted in primary and secondary turf soil was 92% and 86%

respectively. The survival rate of transplanted azalea in first-grade and second-grade flower bed soil was 100%.[Conclusion] The composting product of Cinnamomum camphora branch mixed with shield demulsification is not only beneficial to the environment friendly disposal of shield demulsification

but also can be reused after composting

promotes the degradation of AES in shield demulsification mud

and reduces the harm of AES in shield demulsification to the environment.

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