Biological water-quality detection method using obstructive multi-module biological water-quality detection device

A biological water-quality detection method using an obstructive multi-module biological water-quality detection device, comprising:

• an obstructive multi-module biological water-quality detection device and a biological water-quality detection method,
• wherein said obstructive multi-module biological water-quality detection device includes a water-quality testing device, said water-quality testing device includes a testing water tank (1) and three obstruction units, an inlet gate (22) is installed at one end of said testing water tank (1), and an outlet gate (21) is installed at the other end, said three obstruction units are arranged at the first, second and third sections inside the testing water tank (1), respectively, the distances from the first, second and third sections to the inlet gate (22) increase in sequence, each obstruction unit includes an obstruction index-generating device and a counting device, the obstruction levels of the obstruction index-generating devices at the first, second, and third sections to the indicator organisms increases in sequence, said counting device is used to count the indicator organisms passing through said section,
• said water-quality testing device further includes an obstruction index-selecting device used to select each obstruction index-generating device, the obstruction index-selecting device includes a selection water tank (30), a pushing unit placed at one end of said selection water tank (30), and an obstruction-comparing unit and a monitoring unit that are placed at the other end of the said selection water tank (30), said pushing unit is used to push the liquid in said selection water tank (30) toward the obstruction unit, said obstruction-comparing unit includes a separating plate, said separating plate forms an obstruction section with four identical separated areas at said other end of said selection water tank (30), and each separated area is used to install one or more kinds of obstruction index-generating devices, a water inlet (34) is installed at one end of the selection water tank (30), a water outlet (38) is installed on the other end, said monitoring unit is used to monitor the indicator organisms' behavior at said obstruction section,
• wherein said method includes the following steps:
• S1:
• selecting an indicator organism, and selecting and installing the obstruction index-generating device required in each obstruction unit in the testing water tank (1), in S1, where selecting the obstruction index-generating device required in each obstruction unit specially includes the following sub steps S1a-S1d:
• S1a:
• establishing a single obstruction index, where said single obstruction index includes various single obstruction indexes, said single obstruction index can generate one or more kinds of obstruction levels, said single obstruction index includes a flash, a bubble curtain, a jet vortex, a temperature, or a sound, and establishing an indicator organism library,
• S1b:
• selecting one indicator organism from said indicator organism library, and selecting at least three kinds of valid single obstruction levels from said single obstruction index database,
• S1c:
• determining the obstruction index-generating device in the three obstruction units of said testing water tank (1) according to at least three kinds of valid single obstruction levels selected in S1b and
• S1d:
• installing an obstruction index-generating device at each section of said testing water tank (1) to generate said valid synthetical obstruction level combination,
• S2:
• injecting pollution-free water into the testing water tank (1), arranging a blocking net (41) between the inlet gate (22) and the obstruction unit at the first section, and placing the selected indicator organism between the blocking net (41) and the inlet gate (22), adapting the selected indicator organism to the environment for m minutes, m≥10,
• S3:
• starting each obstruction index-generating device in the testing water tank (1), removing the blocking net so that the water body to be tested flows into the testing water tank (1) through the inlet gate (22),
• S4:
• determining the water-quality of the water body to be tested according to the count changes of the counting devices inside the three obstruction units.