EH-BFB biochemical denitrification dephosphorization technique
A technology for denitrification, phosphorus removal and biological treatment, which is applied in chemical instruments and methods, multi-stage water/sewage treatment, flocculation/sedimentation water/sewage treatment, etc. It can solve the problems of increasing the amount of mud and so on, so as to achieve the effect of solving the contradiction of mud age.
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Embodiment 1
[0053] 1. Test scale: Q=3.6m 3 / d.
[0054] 2. Analytical instruments and analytical methods:
[0055] COD, BOD5, total alkalinity, SVI, SV, MLSS are all determined by national standard methods.
[0056] TN, NH 4 + -N, NO 3 - -N, NO 2 - -N and TP were measured by HANNA water quality analyzer.
[0057] Water temperature and DO were measured by JPB-607 dissolved oxygen meter.
[0058] pH value and ORP were measured by pHB-4pH meter.
[0059] 3. Influent water quality for the test: The sewage discharged from the Shangzhuang residential area and the Taizhouwu area of the hot spring are the raw water sources for the test. The test results of the raw water quality of the sewage are shown in Table 1:
[0060] Table 1 Test raw water quality
[0061]
project
COD
(mg / L) BOD5
(mg / L) TN
(mg / L) NH 4 + -N
(mg / L) TP
(mg / L) SS
(mg / L) Alkalinity
(mg / L) water temperature
℃ pH
scope
250-450
...
Embodiment 2
[0073] 1. Test scale: Q=4000m 3 / d.
[0074] 2. Analytical instruments and analytical methods:
[0075] COD, BOD5, total alkalinity, SVI, SV, MLSS are all determined by national standard methods.
[0076] TN, NH 4 + -N, NO 3 - -N, NO 2 - -N and TP were measured by HANNA water quality analyzer.
[0077] Water temperature and DO were measured by JPB-607 dissolved oxygen meter.
[0078] pH value and ORP were measured by pHB-4pH meter.
[0079] 3. The sewage treatment method of the present invention is implemented in the engineering design and construction of the Taizhouwu sewage treatment plant in Wenquan Town, Haidian District. The raw sewage water quality test results are as shown in Table 3:
[0080] Table 3 Test raw water quality
[0081]
project
COD
(mg / L) BOD 5
(mg / L) TN
(mg / L) NH 4 + -N
(mg / L) TP
(mg / L) SS
(mg / L) Alkalinity
(mg / L) water temperature
℃ pH
scope
150-250
75-...
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