The invention discloses a portable multi-line adsorption treatment device and method for low-concentration heavy
metal-containing farmland
wastewater, providing a solution for the problems of a heavymetal-containing
wastewater adsorption device in the prior art, such as high cost, large floor space, complex process, and unfit for low-concentration heavy
metal-containing farmland
wastewater treatment. The treatment device of the invention comprises a heavy
metal-containing wastewater delivery
pipe, three adsorption lines, and a
treated water discharge pipe. A water pump is arranged on the heavy metal-containing wastewater delivery
pipe; the three adsorption lines are distributed in parallel, and the
treated water discharge pipe is connected to the three adsorption lines, respectively. Theadsorption lines comprise a first-stage adsorption line, a second-stage adsorption line and a third-stage adsorption line which are in sequential
piping connection with one another along a heavy metal-containing wastewater flow direction, with the first-stage adsorption line being filled with
quartz sand, the second-stage adsorption line filled with cation exchange resin and the third-stage adsorption line filled with a
molecular sieve. The portable multi-line adsorption treatment device and method for low-concentration heavy metal-containing farmland wastewater have the advantages of simple structure, convenience of handling, simple treatment process, good
treatment effect, and low cost.