Table 1 A description of the parameters symbolized in the proposed system Eq. 4 and their values10.

From: A qualitative study on the stability and existence of solutions in a fractional-order water pollution model via the predictor–corrector approach

Parameters

Descriptions

Values

\(k_1\)

Self-purification

0.2

\(k_2\)

Microbial/chemical breakdown

0.3

\(k_3\)

Accumulation rates

0.4

\(k_4\)

Microbial growth rates

0.2

\(k_5\)

Natural degradation

0.3

\(k_6\)

Ecological absorption

0.3

\(k_7\)

Recycling of secondary pollutants

0.3

\(k_8\)

Consequences of secondary pollutants

0.4