摘要
舱底污水排放及处理系统运行时,主要采用单一的物理分离法处理污水,导致系统的化学需氧量(CODcr)处理性能较差。以现代船舶舱底污水为研究对象,提出一种新的污水排放及处理系统。硬件方面,针对环境监测传感器、污水处理反应器和浮球式污水排放阀进行设计。软件方面,运用粗滤器、油水分离器等设备,建立舱底污水预处理方案,有效降低污水油份浓度。结合膜分离技术与生物分离技术,设计集成式污水处理反应器,并通过数值模型调控反应器结构参数,实现舱底污水的进一步处理。依托于物联网技术建立舱底污水监控结构,结合改进的反向传播(BP)神经网络识别污水水质。针对符合排放要求的舱底污水,经由浮球式污水排放阀,实现船舶舱底污水自动排放。系统测试结果表明,所提系统具有良好的CODcr处理性能,与原系统相比使得CODcr含量降低68%。
When the bilge sewage discharge and treatment system is running, the single physical separation method is mainly used to treat the sewage, which can lead to the poor CODcr treatment performance of the system. Taken bilge sewage of modern ships as research object, a new sewage discharge and treatment system for bilge sewage of modern ships is proposed. In terms of hardware, the environmental monitoring sensor and sewage treatment reactor are designed.In terms of software, coarse filter, oil-water separator and other equipment are used to establish bilge sewage pretreatment scheme, which can effectively reduce the concentration of sewage oil. Combined with membrane separation technology and biological separation technology, an integrated sewage treatment reactor is designed, and the structural parameters of the reactor are regulated by numerical model to achieve the further treatment of bilge sewage.The bilge sewage monitoring structure is established based on the internet of Things technology, and the sewage quality is identified by the improved BP neural network. Aiming at the bilge sewage meeting the discharge requirements, the floating ball type automatic discharge device is designed to realize the automatic discharge of bilge sewage. The system test results show that the proposed system has good CODcr treatment performance, and the content of CODcr reduces by 68% compared with that of the original system.
作者
张绍萍
ZHANG Shaoping(Liaoning Jianzhu Vocational College,Liaoyang 111000,Liaoning,China)
出处
《船舶工程》
CSCD
北大核心
2022年第12期36-42,共7页
Ship Engineering
关键词
船舶
舱底污水
污水处理
污水排放
水质监测
ship
bilge sewage
sewage treatment
discharge of sewage
water quality monitoring
