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Development of a MATLAB based model for the biological water processor of the water recovery system of an advanced life support program

机译：为高级生命支持程序的水回收系统中的生物水处理器开发基于MATLAB的模型

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The water recovery system (WRS) is one of the necessary systems of an advanced life support (ALS) program that regenerates potable water by sequentially processing wastewater through its four subsystems. The biological water processor (BWP) is one of the complex subsystems of a WRS that involves processes described by both continuous time dynamics as well as discrete event dynamics. It consists of two reactors, the organic carbon oxidation reactor and the nitrification reactor, where wastewater is treated and then it is stored in a gas-liquid separator. A part of the stored water is recycled back to the first reactor and the remaining water is fed to the next subsection for further processing. In this paper, wastewater flow through an organic carbon oxidation reactor and a nitrification reactor is analyzed and the dynamics of the gas-liquid separator are studied. The state variables of the BWP are identified and distributed models are developed for each unit of BWP. Further, these distributed models are integrated and the dynamics of the BWP is studied as a complete subsystem. The state variables description of the subsystem is simulated using MATLAB/Simulink.
机译：水回收系统（WRS）是高级生命支持（ALS）程序的必要系统之一，该程序通过通过其四个子系统依次处理废水来再生饮用水。生物水处理器（BWP）是WRS的复杂子系统之一，它涉及由连续时间动态以及离散事件动态描述的过程。它由两个反应器组成，有机碳氧化反应器和硝化反应器，在其中处理废水，然后将其存储在气液分离器中。将一部分存储的水循环回第一反应器，并将剩余的水送入下一个子部分进行进一步处理。本文分析了流经有机碳氧化反应器和硝化反应器的废水，并研究了气液分离器的动力学特性。确定BWP的状态变量，并为BWP的每个单元开发分布式模型。此外，将这些分布式模型进行了集成，并且将BWP的动力学作为一个完整的子系统进行了研究。使用MATLAB / Simulink模拟子系统的状态变量描述。

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