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Abstract
Anoxic–oxic process is also called anaerobic aerobic process and used widely with the membrane bioreactor (MBR) for wastewater treatment, particularly in China, thanks for their high efficiency, good-quality permeate and easy operation. However, because the content of the feed wastewater fluctuates in a large range and the operation condition of the system needs to be controlled accurately, it is very important to find an efficient way to constantly monitor the nodes of the system, and adjust the operation parameters, including the quantities used in the chemical treatment. Therefore, it is necessary to use Internet of things technology (IOT) sensing and control equipment to realize the dynamic monitoring of sewage treatment process parameters, so as to serve the drug delivery and equipment online control. This study introduces an application case based on IOT sensor control and supporting maintenance business. Through the practical application of this technology in an environmental protection sewage treatment enterprise in Wuxi, this study introduces a method of bringing the IOT into the MBR system of industrial wastewater treatment which can continuously and accurately monitoring the nodes of the system. Based on this study, an analysis and decision-making system based on real-time monitoring data can be realized to adjust operation parameters in time. In this method, the IOT is introduced into the MBR system of industrial wastewater treatment. The results show that with the support of IOT, the sewage treatment system runs stably and the treatment efficiency is significantly improved.
Highlights
Rapid economic growth has caused tremendous damage to China’s ecological environment, especially the hydrographic environment, which results in great pressure on emission reduction and pollution control.In AO process, the ‘A’ is the anaerobic section, which is used to remove nitrogen and phosphorus and the ‘O’ is the aerobic section, which is used to remove organic matter in wastewater
A set of Internet of Things (IoT) applications was used on a 1000-pig farm to a smart wastewater treatment system which had a removal efficiency of biochemical oxygen (BOD), chemical oxygen (COD), and suspended solids (SS) to 93%, 89% and 97%, and 94%, 86% and 96% (Su et al 2020)
Windows control center (WinCC) platform connects the control nodes in the wastewater treatment process with IoT control equipment on the plant’s dedicated network to achieve the best performance, and it can realize a kind of real-time control of the overall process
Summary
Rapid economic growth has caused tremendous damage to China’s ecological environment, especially the hydrographic environment, which results in great pressure on emission reduction and pollution control. In AO (anoxic–oxic) process, the ‘A’ (anaerobic) is the anaerobic section, which is used to remove nitrogen and phosphorus and the ‘O’ (oxic) is the aerobic section, which is used to remove organic matter in wastewater. The. For the extensive use of HF and HNO3 acids during the silicon wafers production process (Belkada et al 2018), the electrodialysis application to remove these ions is affected by several operational factors in the treatment performance such as current intensity, initial pollutants concentration and pH in minutes. A delay of the nitrate ions delivery in the solution will significantly affect the fluoride removal efficiency (Belkada et al 2018) in the photovoltaic industry wastewater. The real-time monitoring data of ions concentration in water can be sampled by different kinds
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