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The use of respiration indices in the composting process: a review

机译：堆肥过程中呼吸指数的使用：综述

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摘要

Respiration is directly related to the metabolic activity of a microbial population. Micro-organisms respire at higher rates in the presence of large amounts of bioavailable organic matter while respiration rate is slower if this type of material is scarce. In the composting process respiration activity has become an important parameter for the determination of the stability of compost. It is also used for the monitoring of the composting process and it is considered an important factor for the estimation of the maturity of the material. A wide range of respiro-metric protocols has been reported based either on CO_2 production, O_2 uptake or release of heat. The most common methods are those based on O_2 uptake. Respirometric assays are affected by a number of parameters including temperature, humidity, and both incubation and pre-incubation conditions. Results from respirometries are generally expressed as 'respiration indices', most of them with their own units and basis. In consequence, some confusion exists when referring and comparing respiration indices. This is particularly important because current and future legislations define and measure the biological stability of waste on the basis of respiration activity of the material. This paper discusses and compares most common respiration indices currently used.
机译：呼吸与微生物种群的代谢活动直接相关。在存在大量可生物利用的有机物的情况下，微生物以较高的速率呼吸，而如果缺乏这种类型的材料，则呼吸速率会较慢。在堆肥过程中，呼吸活动已成为确定堆肥稳定性的重要参数。它也用于监控堆肥过程，并且被认为是估计材料成熟度的重要因素。基于CO_2的产生，O_2的吸收或热量的释放，已经报道了多种呼吸测定方案。最常见的方法是基于O_2吸收的方法。呼吸测定法受许多参数的影响，包括温度，湿度以及孵育和预孵育条件。呼吸测定的结果通常表示为“呼吸指数”，其中大多数都有自己的单位和依据。结果，在参考和比较呼吸指数时存在一些混乱。这一点特别重要，因为当前和将来的法规会根据物质的呼吸活性来定义和衡量废物的生物稳定性。本文讨论并比较了当前使用的最常见的呼吸指数。

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