精准加药系统在土工管袋固化清淤泥浆工程中的应用OA

In order to improve the reliability of the solidification and dredging mud technology for geotextile bags,a precise dosing system has been developed for mud solidification and applied to the G Lake dredging project in Jiangsu Province.The results showed that when the mud concentration was between 10%and 15%,the optimal PAC/dry mud ratio was 0.2%,and the PAM/dry mud ratio was 0.6‰.The precise dosing system detects the mud flow rate and concentration in real-time,calculates the required dosage,and instructs the dosing metering pump to accurately add the required dosage.The error between the actual dosage and the calculated dosage is about±5%.The average values of effluent turbidity,total nitrogen,total phosphorus,ammonia nitrogen,and permanganate index are 26.8 NTU,6.29 mg/L,0.19 mg/L,1.02 mg/L and 5.04 mg/L,respectively;The moisture content of the solidified mud inside the geotextile bag rapidly decreased to 70%,decreased to 60%after two weeks,and decreased to 50%after five weeks.