Table 2 Instrument name and function.

From: Study on physical clogging process and practical application of horizontal subsurface flow constructed wetland

Number

Instrument name

Application

1

All-glass microporous membrane filter

Filter out particles and bacteria

2

The pore size of 0.45 μm filter membrane

Intercept suspended solids particles

3

oven

Drying samples

4

Peristaltic pump

Keep constant water flow

5

CON200 conductivity water quality measuring instrument

Determination of electrical conductivity

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