Maintenance of the equipment of the screw press sludge dewatering

The main purpose of screw press sludge dewatering is to meet the requirements of circulating water quality after the treatment of similar industrial organic wastewater and wastewater, and to recycle the wastewater after treatment. The operation of the machine, must strengthen the equipment maintenance and repair: sewage treatment engineering equipment repair workload is the smallest local repair, only local repair, replacement and adjustment. The equipment of screw press sludge dewatering keeps the machine in good condition to normal state, ready to work, ready to be put into use at any time. The daily maintenance, cleaning, inspection, refueling and other external maintenance of sewage treatment equipment shall be undertaken by the operators, which is a part of inheritance. The maintenance of the equipment of class II sewage treatment project shall be inspected and maintained for the vulnerable parts, including cleaning, lubrication, disassembly and adjustment of local and key equipment, etc. under the professional guidance, the maintenance personnel shall be undertaken by the operators.

The strict inspection and maintenance of the sewage treatment project of the secondary maintenance equipment of the stacked screw sludge dehydrator, including the accuracy of the replacement parts, the maintenance equipment, etc., shall be undertaken by professional maintenance technicians. Balance the technical conditions of wastewater treatment engineering equipment, auxiliary equipment and parts to achieve the longest maintenance interval and save manpower and financial resources. Scientific use of water treatment engineering equipment to ensure that the machine rotation, accessories to achieve the minimum energy consumption. Reasonable operation of equipment under the condition of sewage treatment project, in strict accordance with the technical guidance operation procedures, timely maintenance in case of problems, in order to avoid downtime and loss of parts. In short, maintaining effective sewage treatment engineering equipment and maintenance can improve the economic benefits of the equipment, reduce operating costs, ensure safety, and extend the service life of the equipment.

A lot of people mentioned the temperature and pH of the problem PH.For The relationship between the electrodes, the temperature effect of pH / pH 0.003 ℃, if the 0.2 level acidity meter, calibrate the pH 7.00 buffer solution, and then test the solution (if the pH range of the solution is PH6-8 and ph7.00 different pH unit), the maximum error of temperature effect is 30 x 0.003 = 0.09 pH.If 3 pH unit (in the range of ph4-10), The maximum error of pH value is 0.27, which indicates that temperature has a great influence on pH value. Of course, we can also come to the conclusion that in order to reduce the measurement error of temperature to pH value, we should pay attention to the following three points: try to choose the solution close to pH buffer solution, acidimeter calibration test. Try to make the calibration solution temperature consistent with or close to the temperature test solution. Temperature compensation of pH meter should be selected.

The accuracy is higher than 0.1 pH meter temperature compensation adjustment, but 0.2 pH meter and temperature compensation. Grade 0.2 acidimeter also has some precision of 0.1, which is impossible in fact. One is the confusion between the precision of pH value and resolution of 0.1 and pH value of 0.1. At 60 ℃, even by the pH unit error 0.003 x 60 = 0.18 pH, therefore, there is no temperature compensation of pH meter, and the highest accuracy is only pH 0.2. Landfill leachate treatment process is more effective than traditional activated sludge process because it can maintain higher workload, time, etc. The test results show that: under the control of the operation conditions, the treatment of landfill leachate by low oxygen aerobic activated sludge method, the effect is remarkable. If the treated wastewater is further treated by chemical coagulation, the CODcr of the wastewater can be reduced to less than 100 mg / L by using the stacked screw sludge dehydrator.