WWTPJ stands for Wastewater Treatment Plant Design - Java, a user interface application designed to make the different design processes involved in wastewater treatment much simpler for students in undergraduate courses. Navigate through the site and design an aerated grit chamber, sedimentation tanks and activated sludge process in minutes. Choose either SI units or U.S. customary units to proceed with the application.





                                                                                              SI units


                                                                                             U.S. Customary Units