Effects of Different Pre-processing Methods on Dry Anaerobic Fermentation of Sugarcane Leaves and Pig Manure

Xiaohong Huang,Zunxiang Li,Jing Jiao,Jihua Du,T Coenye,H Huang

doi:10.1051/e3sconf/202014502065

Xiaohong Huang, Zunxiang Li + Show 4 more

Open Access

https://doi.org/10.1051/e3sconf/202014502065

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Abstract

Using agricultural wastes for anaerobic fermentation to produce biogas can not only realize the resource utilization of the wastes, but also prevent the environmental issues caused by straw burning. Sugarcane leaves contain waxy layer, which will cause problems such as difficulty in degradation, long-time fermentation and low biogas production. This paper studies the effects on three pre-processing methods of adding rush rot agent, natural retting for 7 days and water moisture for 24 hours of dry anaerobic fermentation of sugarcane leaves and pig manure. The results show that natural retting for 7 days has the advantage of daily biogas production when the fermentation period is less than 20 days, but this method is not obviously different from that of water moisture for 24 hours. When taking total biogas production volume and volume loading rate as the indicators, water moisture for 24 hours is the best pre-processing method for dry anaerobic fermentation of sugarcane leaves and pig manure when the fermentation period is more than 20 days.

Highlights

Anaerobic digestion technology is an effective way for resource utilization and energy utilization of agricultural and breeding wastes.Sugarcane leaves are the main wastes in the harvesting process
This paper studies the effects of different pre-processing methods on the performance of dry anaerobic fermentation of sugarcane leaves and pig manure, and draws the following conclusions:
Adding rush rot agent can accelerate the start time of fermentation, but it does not improve the ability of sugarcane leaves and pig manure to produce biogas

Summary

Introduction

Anaerobic digestion technology is an effective way for resource utilization and energy utilization of agricultural and breeding wastes.Sugarcane leaves are the main wastes in the harvesting process. The maximum biogas production volume was 655.30 L under the condition of 1:1 mass ratio of grass and manure and 38 °C fermentation temperature in natural retting They thought that adding Lv Jie Ling and rush rot agent had no effect on sugarcane leaves fermentation when retting. This experiment aims to explore the effects of three different pre-processing (adding Rylatt rush rot agent, natural retting for 7 days and water moisture for 24 hours) methods on sugarcane leaves dry anaerobic fermentation, study the feasibility of straw pre-processing with microorganism from raw materials and provide theoretical reference and scientific support for improving the anaerobic digestion performance and biogas production efficiency of mixed materials

Materials and Methods

Results and Analysis

Conclusion