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Reducing Costs and Increasing Efficiency for pH Neutralization Systems

机译：降低pH中和系统的成本并提高效率

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摘要

Controls systems for pH neutralization of wastewater are often designed to maintain a set point by continuously adding chemicals at a flow-paced rate that is also trimmed to increase accuracy. This approach is effective, but may require more chemicals and energy than necessary when the goal is simply to keep the pH within a range to meet regulatory requirements. This paper analyzes the pH control system at an industrial wastewater pre-treatment plant that prevents the discharge of noncompliant water while minimizing chemical and energy consumption. Neutralization of the plant's wastewater is achieved by running various chemical addition pumps of different sizes as needed to adjust the pH to within regulatory limits.The pre-treatment system also includes many other features to further protect against discharging noncompliant water, increase process efficiency, and reduce maintenance costs. Some of these features include redundant instrumentation, level controlled flow equalization pumps, and functionality within the operator interface to simplify pH probe calibration.
机译：用于废水pH值中和的控制系统通常设计为通过以一定流速连续添加化学物质来维持设定点，该流速也经过调整以提高准确性。这种方法是有效的，但是当目标只是将pH值保持在一定范围内以满足法规要求时，可能需要的化学药品和能量比必要的更多。本文分析了工业废水预处理厂的pH控制系统，该系统可防止不合格水的排放，同时最大程度地减少化学药品和能源的消耗。通过根据需要运行各种不同尺寸的化学加料泵以将pH值调节到规定范围内，来中和工厂废水。预处理系统还包括许多其他功能，可以进一步防止排放不合格水，提高处理效率和降低维护成本。其中一些功能包括冗余仪表，液位控制流量均衡泵以及操作员界面中的功能，可简化pH探头校准。

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