Conversion of Biosolid to Biochar fr Soil Remediation and Carbon Sequestration

夏洛特镇污染控制厂（CPCP）每年处理约700万立方米的废水，产生约3700吨生物固体。目前，这些固体经过预巴氏灭菌、厌氧消化和脱水，生产沼气和A级生物固体。这样产生的生物固体然后以35美元/吨的小费被带走。沼气在锅炉中燃烧，提供巴氏杀菌和空间加热所需的热量。CPCP希望确定生物固体的其他高价值用途，可以为种植带来收入。对爱德华王子岛省具有重要意义的选择之一是将固体转化为生物炭，并将其应用于土壤修复。它增加了土壤中的有机质含量。它还保存着养分和水，有助于有效利用，这是爱德华王子岛农业部门的迫切需要之一。其次，直接将生物炭施于土壤，可避免等量的二氧化碳排放，有助于清洁环境。因此，将生物固体转化为生物炭可以产生新的高价值产品。拟议的研究调查的产量和性能的生物炭和liquideextract从消化和未消化的生物固体可能的土壤应用。

Charlottetown Pollution Control Plant (CPCP) treats approximately 7 million cubic meters of wastewaterannually producing roughly 3700 tonnes of bio-solids. Presently, the solids are pre-pasteurized, anaerobicallydigested and dewatered producing biogas and class-A biosolid. The biosolid thus produced is then taken awaywith a tipping fee of $35/ton. The biogas is combusted in a boiler to provide heat needed for pasteurization andspace heating. CPCP would like to determine other high value use of biosolid that can generate revenue toplant. One of the options that have high significance to the province of Prince Edward Island is to convert thesolid into biochar and apply it to the fields for soil remediation. It increases the organic level in soil. It alsoholds the nutrients and water contributing towards their efficient use, one of the pressing needs for agriculturalsector in PEI. Secondly, the direct application of biochar on soil prevents equivalent amount of carbon dioxideemission, contributing to cleaner environment. Therefore, turning biosolid into biochar can generate newstream of high value product. The proposed research investigates the yield and properties of biochar and liquidextract from digested and un-digested biosolids for possible soil application.