Machinery & Energetics

In practice, in existing biogas plants (BP) it is not posible to use different types of biomass, beacose they depends of the year season and their non-optimal use can lead to a significant decrease level of output biogas of BP. A promising avenue for eliminating this drawback is the development of a special technology for the preparation and processing of various types of biomass, with the help of which necessary conditions are created to obtain the maximum possible volume of biogas on the basis of the disruptive (cavitational) treatment of raw materials and the use of special additives. At same time, optimal dosing, heating and mixing of the substrate are carried out for various types of raw materials, which ensures the effective use of the entire volume of the BP tank, excludes formation of "passive" zones, sediment stratification, deposition of mineralized sediments and crust formation, and also helps to equalize the temperature field and improve gas formation. With the help of the sensor REDOX, it is possible to measure the reduction rate of the oxidation-reduction potential (ORP) without depressurizing the cultivator in a liquid medium. A scale of dyes (redox indicators) was developed to measure ORP during the growth of cultures of microorganisms in the range from -30 to -420 mV. Based on the analysis of the characteristics of the stereometric distribution of redox zones in a liquid or agarized medium, the optimal dosage, destructive (cavitational) treatment of raw materials and various types of special additives is realized, which significantly increases the level of output biogas of BP.

biogas plant, biogas technology, biomass, energy crops, substrates, additives, biogas, methane, REDOX-sensor