The invention discloses a device, a
system and a method for long-term monitoring of comprehensive
ecotoxicity of standard
sewage and
wastewater. The device comprises a water inlet
pipe, a cylinder, alight source, a
water quality online monitoring device, a monitoring camera, a
toxicity monitoring screen box, an overflowing groove and a water outlet
pipe, the cylinder is used for building a miniature water ecological device, the water inlet
pipe is connected with the cylinder and used for draining water to be monitored into the cylinder, the
light source is arranged on the upper portion of thecylinder and used for simulating illumination of
sunlight for water, the
water quality online monitoring device is used for detecting
water quality parameters of the water, the
toxicity monitoring screen box is arranged in the cylinder and used for breeding aquatic animals serving as a target creature, the monitoring camera is arranged above the
toxicity monitoring screen box and used for survival statuses of aquatic animals in real time, the overflowing groove is formed in the cylinder, and the water outlet pipe is communicated with the cylinder through the overflowing groove and used for discharging water and keeping basic constant volume of the water.