Response curved surface-based optimization method for repairing copper-polluted water body by using scindapsus aureus

Abstract

The invention discloses an optimization method for repairing a copper-polluted water body by using scindapsus aureus based on a response curved surface. The optimization method comprises the following steps: determining better parameter value ranges of adding concentrations of exogenous strengthening factors salicylic acid, sodium nitroprusside and plant hormone brassinosteroid through a single-factor test; selecting a Box-Behnken method in a response surface method to design an optimization test; performing a response surface test to obtain a response value-copper removal rate required for establishing the model; performing multivariate regression fitting on the experimental data by applying Design-Expert software, and establishing a secondary multivariate regression model; performing variance analysis and significance analysis on the response surface quadratic model; and determining an optimal condition, and carrying out a verification test to check the effectiveness of the model and the practicability of the optimal condition. According to the method, the three exogenous strengthening factors are applied to optimize the scindapsus aureus to restore the copper pollution, the test efficiency is high, the prediction precision is high, the operability is high, and the heavy metal copper accumulation capacity of the scindapsus aureus can be effectively improved, so that the water quality is improved.

Description

technical field [0001] The invention relates to the technical field of copper-polluted wastewater treatment, in particular to an optimization method for restoring copper-polluted water bodies based on response surface-based pothos. Background technique [0002] With the rapid development of modern industry, the total discharge of industrial wastewater is increasing, resulting in the discharge of many pollutants into the water, especially heavy metal pollution in water. Heavy metals are typical accumulative pollutants in the environment and are difficult to degrade. Once heavy metals enter the water body, it is difficult to restore the water body to its original state only by the self-purification ability of the water body. In addition, heavy metals in the aquatic environment are easy to migrate, so they can easily affect human health directly or indirectly through aquatic animals. Copper ions cannot be biodegraded after entering the water body, but can only undergo migratio...

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Problems solved by technology

[0006] The purpose of the present invention is to provide an optimization method for the restoration of copper-contaminated water bodies of pothos based on response surfaces, and further solve the problems of short restoration plants, low efficiency of plants absorbing heavy metal copper, and insignificant water restoration effects, so as to achieve efficient and relatively safe Water body restoration, and can be applied to actual restoration on a large scale

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