The aim of this unit is to allow the survey and the comprehension of the anaerobic digestion process. Anaerobic Digestion (AD) is a biological process that happens naturally in which micro-organisms break down biodegradable material (organic matter) in environments with no oxygen. The unit PDANC pumps the feedstock from a tank (not supplied) with a peristaltic pump, through a flowmeter, and finally gets the digester or reactor. From the top of the digesters, a pipe brings the produced gas to the volumetric tank where its volume is measured. The unit can work with both digesters in parallel.
The digesters are heated up by means of hot water coming from a thermostatic bath, passing through the jacket of the digester. Each digester has a close circuit of water from the bath with a regulation valve to control the flow. To measure the volume of produced gas, two volumetric tanks are used. These tanks measure the gas produced by the digester by water displacement. The volumetric tank has two parts: the first one, the upper tank, is where the gas is collected and measured. The second one, smaller than the former and underneath it, is to collect the displaced water.
This Computer Controlled Unit is supplied with the EDIBON Computer Control System (SCADA), and includes: The unit itself + a Control Interface Box + a Data Acquisition Board + Computer Control and Data Acquisition Software Packages, for controlling the
process and all parameters involved in the process.