Volume 19 Part 1 Article 110: Goody water in compost production – a valuable microbial inoculum or a source of disease?

Volume 19 Part 1 Article 110
Year 2016
Title: Goody water in compost production – a valuable microbial inoculum or a source of disease?
Author: K. M. Safianowicz, T. Bell and M. A. Kertesz

Abstract:
Production of high-yielding button mushroom compost requires addition of water up to 70-80% of compost mass. The process water used is often recycled by commercial composting operations for economic and environmental reasons (“goody water”; usually combined runoff water from all parts of the operation (Fig. 1).

Goody water is thought to inoculate the raw ingredients with microbes beneficial for the composting process. However, concerns about spreading undesirable microbes in this way have also been raised by the industry. In addition, anaerobic conditions arising from poor management of goody water may cause odour problems due to generation of volatile sulfur compounds by bacteria.

To investigate the dynamics of microbial communities in goody water, we studied changes in bacterial community composition and anion concentrations over a period of four weeks under one compost yard’s standard operating procedures.

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