Sludge comprehensive treatment technique and technology
The sludge from the current sewage treatment plant and river has been the second pollution of modern city. To make the sludge harmless, and lessen its production and recover it as a resources are the hot problems to be resolved in today's environment protection project.
In order to secure the sludge treatment in a scientific way and to maximize the resource utilization to be environment friendly, it needs sorting by the following three groups before the treatment. They are: dissolved nutrient, biological hormone and sludge contaminant content.
Sludge Groups
Harmful sludge
The harmful sludge has the metal contaminant that above the standard. It come from the factories on electronics, plating, steel, leather and printing and dyeing and agrochemical industry.
Normal sludge
The contaminant has less harm on the creatures, like the sludge from the liver and
sewage treatment plant.
The strong points
It asks for limited space, low cost and easy to manage, is a good way to decrease the sludge, achieve the great benefits out of the limited resources and there is no second pollution.
EETDI Sludge Comprehensive Treatment Flow: 
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