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A flexible control system designed for lab-scale simulations and optimization of composting processes.

Sh Oazana1, M Naor2, J Grinshpun3

  • 1Institute of Soil, Water and Environmental Sciences, Newe Ya'ar Research Center, Agricultural Research Organization (ARO), Ramat Yishay 30095, Israel; Department of Environmental Hydrology and Microbiology, Zuckerberg Institute for Water Research, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, 84990, Israel.

Waste Management (New York, N.Y.)
|November 28, 2017
PubMed
Summary

A new Agricultural Research Organization Composting Simulator (ARO-CS) offers flexible, automated control for composting research. This tool optimizes temperature and airflow, advancing the science and engineering of composting processes.

Keywords:
AerationComposting simulatorProgrammable Logic Controller (PLC)Self-heatingTemperature-feedback control

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Area of Science:

  • Environmental Science
  • Biotechnology
  • Chemical Engineering

Background:

  • Optimizing composting processes requires controlled simulation environments.
  • Existing simulators may lack flexibility in controlling key parameters.
  • Understanding composting dynamics is crucial for waste management and soil health.

Purpose of the Study:

  • To introduce and detail the Agricultural Research Organization Composting Simulator (ARO-CS).
  • To highlight the flexible automation and control capabilities of the ARO-CS.
  • To discuss the potential applications of the ARO-CS in composting research.

Main Methods:

  • Development of a programmable logic controller (PLC) system for automated control.
  • Integration of seven 9-L reactors within 80-L water baths for stable temperature control.
  • Implementation of multiple heating modes (pre-determined, feedback, CO2-dependent) and aeration modes (temperature, CO2, O2-dependent).

Main Results:

  • The ARO-CS successfully integrates monitoring and control of temperature, CO2, O2, and airflow.
  • The PLC system allows for flexible combinations of heating and aeration strategies.
  • The simulator provides a robust platform for diverse composting research questions.

Conclusions:

  • The ARO-CS is a versatile and valuable research tool for studying composting science and engineering.
  • Its high flexibility enables exploration of a wide range of experimental conditions.
  • The simulator facilitates advancements in understanding and optimizing composting technologies.