Il linguaggio Ballerina

Ballerina è un linguaggio open-source, cloud-native, progettato, quindi, con l'intento di alleggerire il carico dello sviluppo e dell'integrazione associato alle applicazioni aziendali. Questo linguaggio semplifica il modo in cui un programma comunica con la rete, che di solito avviene tramite un API (Application Program Interface). Ballerina tenta di creare un sistema integrato, riunendo i concetti, le idee e gli strumenti essenziali di integrazione di un sistema distribuito e offrendo un ambiente concorrente e sicuro per supportare lo sviluppo di API

Legislation for the reuse of biosolids on agricultural land in Europe: overview

The issues concerning the management of sewage sludge, produced in wastewater treatment plants are becoming more important in Europe due to: (i) the modification of sludge quality (biological and chemical sludge are often mixed with negative impacts on sludge management, especially for land application); (ii) the evolution of legislation (landfill disposal is banned in many European countries); (iii) the technologies for energy and material recovery from sludge are not fully applied in all European Member State. Furthermore, Directive 2018/851/EC introduced the waste hierarchy that involved a new strategy with the prevention in waste production and the minimization of landfill disposal. In this context, biological sewage sludge can be treated in order to produce more stabilized residues: the biosolids. In some European countries, the reuse of biosolids as soil improver/fertilizer in arable crops represents the most used option. In order to control the quality of biosolids used for land application, every Member States, has issued a national regulation, based on European Directive. The aim of this work is to compare the different approaches provided in European Member States for the reuse of biosolids in agricultural soils. A focus on the regulation of countries that reuse significant amount of biosolids for land application was performed. Finally, a detailed study on Italian legislation both at national and regional level is reported