Sand filters grow bio sludge, plug with TSS and require backwash water use, high maintenance and high water use. They do not remove the 1-5 microns (bulk of TSS in the open loop). Old technology in a new age!
Sand filters grow bio sludge, plug with TSS and require backwash water use, high maintenance and high water use. They do not remove the 1-5 microns (bulk of TSS in the open loop). Old technology in a new age!