The invention discloses a control method and detection device of
sewage aerobic treatment dissolved
oxygen. The control method includes: using a dissolved
oxygen tester to cooperate with the detectiondevice to detect dissolved
oxygen content in an aerobic tank; transmitting the dissolved
oxygen content obtained by detection to a
computer data processing system; comparing the dissolved
oxygen content with set upper-
lower limit data of dissolved
oxygen content by the
computer data processing system.
Processing is realized through a
computer software data system, the on-site dissolved oxygen tester is mounted in the aerobic tank, data are connected into the
computer data processing system which sets a dissolved oxygen range, an
air compressor is automatically started to aerate the aerobic tank when dissolved oxygen content reaches a
lower limit, and the
air compressor is stopped from running when the dissolved oxygen content reaches an upper limit, so that automatic aerobic
aeration is realized, running stability of a
sewage treatment aerobic system is ensured, and energy is saved. A sampling
pipe is arranged in the aerobic tank, direct sampling analysis of
sewage at different depthand height can be realized, manual collection is not needed, and continuous sampling analysis can be realized, so that time and manpower are saved.