Some organic contaminants can transfer across. Energy cost and reject heat are some common concerns. Activated Alumina Where much larger volumes of treated water are needed, the treatment process known as activated alumina becomes more cost effective. In this process the well water passes through a bed of activated alumina media. Aluminum from the adsorption media is not given off by this media.
Alumina also removes arsenic very effectively.
Although technically capable of fluoride removal, the economics of activated alumina treatment for fluoride may be poor. This approach would be used for whole house treatment. Periodic Maintenance for Activated Alumina Maintenance would consist of replacing the alumina media periodically. The old alumina may be disposed of along with your household trash. During startup, and subsequent operation, periodic laboratory testing is necessary to determine when breakthrough begins.