Composition and system for flocculating or settling solids from liquids and methods for using same

摘要

A system and method for treating water or sewage is provided. The system can include a screening tank, a septic tank, a flocculant and mixing reactor, a primary clarifier, a secondary clarifier, a sludge dewatering tank, a surge tank, one or more filter tanks and a disinfection tank. The method can include the steps of receiving water or sewage to be treated and passing it through a screening tank and septic tank, a flocculant reactor, a primary clarifier, a secondary clarifier, a sludge dewatering tank, a surge tank, one or more filter tanks and a disinfection tank.

主权项

1. A system for treating waste water comprising suspended solids, the system comprising:
a) a screening tank configured to receive the waste water; b) at least one septic tank configured to receive the waste water from the screening tank; c) a mixing reactor configured to receive the waste water from the at least one septic tank; d) a flocculant tank configured to inject a first flocculant into the mixing reactor wherein the first flocculant mixes with the waste water, wherein the first flocculant comprises:
I) a polymer flocculant comprising a high molecular weight, in a proportion of approximately 10% to 70% by weight,ii) a soluble salt of a group IA metal or a soluble salt of a group IIA metal, in a proportion of approximately 0.5% to 35% by weight, andiii) water; e) a primary clarifier configured to receive the waste water mixed with the flocculent from the mixing reactor wherein at least some of the suspended solids disposed in the waste water settle in the primary clarifier to produce first clarified waste water and first settled solids; f) a secondary clarifier configured to receive the first clarified waste water from the primary clarifier wherein at least some of the suspended solids disposed in the first clarified waste water settle in the secondary clarifier to produce second clarified waste water and second settled solids; g) a surge tank configured to receive the second clarified waste water from the secondary clarifier; and h) at least one filter tank configured to receive the second clarified waste water from the surge tank wherein the second clarified waste water is filtered to produce treated waste water.