ASM1 Influent Generator

A Python Module to generate influent data in the Activated Sludge Model 1 (ASM1) format. This module creates arrays in the format required by the ASM1 model, which is used to simulate the biological processes in wastewater treatment plants. The resulting arrays are resolving to 15 minute time steps and can be used as influent data for the simulation of wastewater treatment plants.

Getting started

Installation

Simply install the package with pip:

pip install asm1-influent-generator

Usage

Command Line

There are different ways to use the module. The easiest way is to just call it from the command line:

asm1-influent-generator 1

This will generate one array with 50 days of influent data. The resulting array will be saved as a CSV file in the current working directory.

Python

You can also use the module in your own Python code:

from asm1_influent_generator import ASM1Generator

gen = ASM1Generator()
arr = gen.generate(5)

This example will generate one array with 5 samples of 50 days of influent data. The resulting numpy array has the shape (n_samples, n_timesteps, n_components).

Limitations

The module is currently limited to a 50 day generation period. Also, the time step is fixed to 15 minutes. This is due to the fact, that the underlying Generative Adversarial Network (GAN) was trained on 50 days of 15 minute time steps.

The Model

We use gretel-synthetics to generate synthetic data. The model is a DoppelGANger model. It was trained on data from the IWA Benchmark Simulation Model No. 2 (BSM2) influent dataset which originally features 609 days of influent data. It was trained for 200.000 epochs.

Credits

The development of this package was done in the context of the KLÄFFIZIENT project. The project is funded by the German Federal Ministry for Economic Affairs and Climate Action (BMWK) and is part of the 7th Energy Research Program of the Federal Government.