Title:
BACKWASHING REGULATION METHOD FOR AUTOTROPHIC DENITRIFICATION FILTER USING SULFUR-BASED FILLERS
Document Type and Number:
WIPO Patent Application WO/2024/021421
Kind Code:
A1
Abstract:
Provided in the present invention is a backwashing regulation method for an autotrophic denitrification filter using sulfur-based fillers. In the method, wastewater can be effectively treated by means of controlling the backwashing frequency and strength; in addition, nitrogen gas accumulated in a bed can be controlled by means of controlling the backwashing frequency and strength; furthermore, the thickness of a biological film can also be controlled, and the nitrate nitrogen concentration in effluent can also be monitored in real time by means of an online monitoring device; and a feedback system is provided, and comparison is performed between the nitrate nitrogen concentration in effluent that is fed back and a set value, so as to regulate the backwashing frequency and the backwashing strength, and thus not only are sewage treatment procedures effectively reduced, but the sewage treatment cost can also be effectively reduced, and the sewage treatment effect is thus improved.
Inventors:
CHENG HAOYI (CN)
DONG HENG (CN)
SUN YILU (CN)
WANG AIJIE (CN)
SUN QI (CN)
YAO XIAODONG (CN)
DONG HENG (CN)
SUN YILU (CN)
WANG AIJIE (CN)
SUN QI (CN)
YAO XIAODONG (CN)
Application Number:
PCT/CN2022/135730
Publication Date:
February 01, 2024
Filing Date:
December 01, 2022
Export Citation:
Assignee:
HARBIN INST TECHNOLOGY SHENZHEN (CN)
International Classes:
C02F3/30; C02F3/34
Domestic Patent References:
| WO2019027377A1 | 2019-02-07 |
Foreign References:
| CN113716690A | 2021-11-30 | |||
| CN111320272A | 2020-06-23 | |||
| CN109775849A | 2019-05-21 |
Attorney, Agent or Firm:
BEIJING CONCEPT INTELLECTUAL PROPERTY AGENCY (CN)
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