Further contributions to nitrogen removal modelling in waste stabilization ponds

Abstract

A large database from an experimental maturation pond system in Brazil was used to verify the agreement of field results with values predicted by some of the most widely accepted models to describe ammonium and total nitrogen (TN) removal in facultative and maturation ponds. The same database was used to derive a pH-independent linear model to predict ammonium removal in ponds, which was proved to be, essentially, a function of ammonium surface loading rate. In general, all these models made reasonable predictions of ammonium or TN removal but tended to overestimate low ammonium effluent concentrations while underestimating higher values of field data.

Physic-chemical characteristics and sensory evaluation of cakes with Nile tilapia (Oreochromis niloticus) waste flour

“…Study reported that, the use of these waste is de-ficient and needs of the development of practices that allow the better use, not only on to prepare animal feed and fertilizer (Moraes et al, 2021). These wastes are rich in organic and inorganic materials and can pollute natural resources and can be a patho-gens source harmful to health if released into the environment without prior treatment (Bastos et al, 2014). Instead of discarded, waste can be used in food to add value and make fish processing a more sustainable activity.…”