A liquid-solid separation is a type of widely used in various different sectors including municipal water systems. When selecting or sizing a filter press, it is essential to understand its performance and effectiveness. These factors will significantly impact the overall production costs, effective utilization of resources and materials, and sustainability of the system or operation.

FILTER PRESS CAPACITY
Capacity is a measure of the maximum amount of solids that a dewatering equipment can handle within a specific time frame. Factors affecting the capacity of a filter press equipment include the degree of densification, filter cloth cleaning, and the degree of filter feed. In general, increased solids supply will lead to increased final product, which in turn will lead to increased capacity. However, if the filter plates are not effectively cleaned, this may lead to a decrease in capacity due to inadequate use of filterable area.

The liquid-solid separation capacity must be closely linked with the flow rate of the feed stream and the solids feed rate. For instance, if the solids concentration exceeds the filter press capacity, this could lead to several issues including backflow of the slurry through the discharge valves and possibly even a clogging at the liquid-solid separation equipment if there is no control mechanism to the incoming concentration feed stream.

FILTER PRESS EFFICIENCY
Efficiency of a dewatering refers to the ability of the system to utilize its available capacities while minimizing leaks and spills. In other words, efficiency will be affected when considering how well the cake is pressed from the filter media and the reusability of the filter plates. Good operating processes and monitoring processes are essential in extracting the most out of the process plant.

Some forms of low efficiency in filter press operations can be identified by excessive retained solids, too much trapped particulate within the filter cloth, the media not sealing well with the filter press machine manufacturers media, and so on. To upgrade and optimize the operation of a liquid-solid separation equipment, it's recommended to perform a operation review on the existing equipment to identify areas of inefficiency and waste and then modify the existing operation methods and procedures accordingly.

When comparing dewatering systems, factors to consider include the best overall sustainability and longevity, which could boost operational efficiency and productivity, including minimally allowing the parts to perform efficiently, ability for upgradation and modification, and whether the operation supports sustainable operation.