Biogas production is a relatively novel and developing branch of the renewable fuel sector, which allows agricultural waste, and more, to be used as a feedstock. New technologies have been integrated into the process to improve its efficiency. In this study, a pump-mixed anaerobic digestion concept is considered for both experimental and modeling approaches. The experiment included a total of nine configurations with the same geometry (140 dm³ of total reactor volume) but different hydraulic retention times and mixing intervals. The measurements were used to create and optimize a mathematical model. The complete-stirring assumption, which underlies most anaerobic digestion (AD) simulations, is no longer valid in this case. Thus, the novel concept is developed by assuming that the liquid phase is split into three separate sections, which approximates the concentration gradient in a real reactor. This method allows partial differential equations to be avoided, which could potentially affect the calculation efficiency. The final mean accuracy of the model in the tested range was estimated to be 86.60% while, in selected parts of the scope, was close to 90%. The pump-mixed anaerobic digestion technique in the experiment achieved high production performance (above 8 dm³ of product per 1 dm³ of feedstock) while maintaining a high methane content (approximately 65%). The comparison between the reactor stirred by an impeller, and the pump-mixed, indicated that the proposed configuration ensures better production stability. Additionally, it was possible to achieve a higher biogas production rate with the same feedstock concentration.

沼气生产是可再生燃料行业中一个相对较新的，发展中的分支机构，该部门可以将农业废弃物等用作原料。新技术已集成到该过程中以提高其效率。在这项研究中，泵混合厌氧消化的概念被认为是实验和建模方法。该实验总共包括九种具有相同几何形状（140 dm ³总反应器体积），但水力停留时间和混合间隔不同。这些测量用于创建和优化数学模型。在大多数厌氧消化（AD）模拟基础上的完全搅拌假设在这种情况下不再有效。因此，通过假设液相被分成三个独立的部分来发展新的概念，这三个部分近似于真实反应器中的浓度梯度。该方法可以避免偏微分方程，这可能会影响计算效率。该模型在测试范围内的最终平均准确度估计为86.60％，而在示波器的选定部分中则接近90％。实验中的泵混合厌氧消化技术实现了较高的生产性能（8 dm以上）每1 dm ³原料中有³种产品），同时保持较高的甲烷含量（约65％）。由叶轮搅拌的反应器和泵混合的反应器之间的比较表明，所提出的构造确保了更好的生产稳定性。另外，有可能在相同的原料浓度下实现更高的沼气生产率。