Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India; CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur 440 020, India.
Amity School of Earth and Environmental Sciences, Amity University Haryana, Gurgaon 122 413, India; CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur 440 020, India.
Bioresour Technol. 2021 Feb;322:124557. doi: 10.1016/j.biortech.2020.124557. Epub 2020 Dec 16.
The aim of the present work was to study the synergic effect of fly ash (FA) and garbage enzymes (GE) on biotransformation of organic wastes in in-vessel composting system. In-vessel composting of organic waste (household + brown in vessel 1) was performed with fly ash (mixed 5% in vessel 2; 10% in vessel 3; 15% in vessel 4; and 20% in vessel 5) by addition of extra carbon source (5%) and garbage enzyme in a fixed-dose (5%) for 15 days and changes in chemical properties (C: N ratio, nitrates, sulphates, phosphates and macro-elements) were analyzed at maturity. Vessel 5 showed better results in terms of organic matter degradability and C: N ratio (13.68) of mature compost. Principal Component Analysis (PCS) also confirmed vessel 5 as the best performing among other vessels. FTIR analysis indicated a major shift in chemical structure of organic waste due to the composting action.
本研究旨在探讨粉煤灰（FA）和垃圾酶（GE）协同作用对容器内堆肥系统中有机废物生物转化的影响。采用容器内堆肥法，以粉煤灰（分别按 5%、10%、15%和 20%的比例添加到容器 2、3、4 和 5 中）为额外碳源，添加 5%的额外碳源（容器 1 中为家庭+棕色垃圾，容器 2 中为粉煤灰混合 5%，容器 3 中为粉煤灰 10%，容器 4 中为粉煤灰 15%，容器 5 中为粉煤灰 20%）和 5%的垃圾酶，进行为期 15 天的固定剂量处理，分析成熟时化学性质（C:N 比、硝酸盐、硫酸盐、磷酸盐和大量元素）的变化。在成熟堆肥中，容器 5 在有机物降解性和 C:N 比（13.68）方面表现出更好的效果。主成分分析（PCS）也证实了容器 5 在其他容器中表现最佳。傅里叶变换红外光谱（FTIR）分析表明，由于堆肥作用，有机废物的化学结构发生了重大变化。
