Huber Patrick, Neyret Christophe, Fourest Eric
Centre Technique du Papier (CTP), CS90251, 38044 Grenoble Cedex 9, France E-mail:
Water Sci Technol. 2017 Sep;76(5-6):1090-1103. doi: 10.2166/wst.2017.282.
Anaerobic digestion is state-of-the-art technology to treat sludge and effluents from various industries. Modelling and optimisation of digestion operations can be advantageously performed using the anaerobic digestion model (ADM1) from the International Water Association. The ADM1, however, lacks a proper physico-chemical framework, which makes it difficult to consider wastewater of complex ionic composition and supersaturation phenomena. In this work, we present a direct implementation of the ADM1 within the PHREEQC chemistry engine. This makes it possible to handle ionic strength effects and ion-pairing. Thus, multiple mineral precipitation phenomena can be handled while resolving the ADM1. All these features can be accessed with very little programming effort, while retaining the full power and flexibility of PHREEQC. The distributed PHREEQC code can be easily interfaced with process simulation software for future plant-wide simulation of both wastewater and sludge treatment.
厌氧消化是处理来自各行业污泥和废水的先进技术。利用国际水协会的厌氧消化模型（ADM1）对消化操作进行建模和优化会很有优势。然而，ADM1缺乏合适的物理化学框架，这使得难以考虑具有复杂离子组成的废水和过饱和现象。在这项工作中，我们展示了在PHREEQC化学引擎中对ADM1的直接实现。这使得处理离子强度效应和离子配对成为可能。因此，在求解ADM1时可以处理多种矿物沉淀现象。所有这些功能只需很少的编程工作就能实现，同时保留了PHREEQC的全部功能和灵活性。分布式的PHREEQC代码可以很容易地与过程模拟软件接口，以便将来对废水和污泥处理进行全厂范围的模拟。
