Sewage water treatment

           Before and Until recently, problem of domestic wastewater treatment being overlooked, the nature dealing, So most of the wastewater treatment system activity if there are old and backward.Traditional technologies often use biological alternatives Aerotank to do the leading for sewage treatment. The downside of traditional technologies  system requires large areas and often have some targets are not reached follow new standards promulgated as N, P, BOD, COD.

           But with the residential area, Office Tower… , is located at the golden land, use much money building about hundred billion but also waste water treatment dusty, was stinking. So the investors always carefully consider rocess technology how beautiful, compactlittle cost and quality discharge area

 

         Characteristic of pollution and water discharge standards of building waste expressed as the following table :

No	Specification	Unit	Standard  QCVN 14:2008
			Column A	Column B
1	pH	-	5 - 9	5 - 9
2	BOD5 (20 0C)	mg/L	30	50
3	Total Suspended Solid (TSS)	mg/L	50	100
4	Total dissolved solids	mg/L	500	1000
5	Sunfua ( calculated according to H2S)	mg/L	1.0	4.0
6	Amoni ( calculated according to N)	mg/L	5	10
7	Nitrat (NO3-) ( calculated according to N)	mg/L	30	50
8	Animal fat and vegetable oil	mg/L	10	20
9	Total surfactant	mg/L	5	10
10	Phosphat (PO4 3-)	mg/L	6	10
11	Total Coliform	MPN/100mL	3000	5000