Overview

EMASESA, as the public entity responsible for water and waste mater infrastructure and management in Seville, engaged in a circular renovation of old water and sewage pipelines by recycling concrete, road surface, filling, and soil. The pilot focused on water network infrastructures with materials such as concrete pipes, road surface, soil and filling material. 

Implementation

• The CDW quality and technical properties of the dug up pipes in the demonstration sites was analysed and compared to required specifications
• CDW that met the standards of quality was used to replace primary raw materials and/or to improve soil quality in nearby municipal sites.
• The piloted material management approach was incorporated into green procurement criteria that can be used in other similar public works 
• EMASESA worked to engage construction stakeholders to mainstream the use of circular considerations in public contracts, and will also publish a practical guide for quality classification and handling of CDW according to the waste hierarchy.

Relevant instruments

• Quality assessment for CDW

Overview

Digital tools have been developed to optimise the use of Seville’s five clean points for collection of CDW from citizens and small producers. An app was created with one interface for citizens to instruct them to the clean point best suited to receive their CDW, and one interface for city managers to understand the quantity of CDW at each clean point and plan for future scenarios of city growth to open new clean points. 

Implementation

• Data collected on the stocks and flows of CDW through the cities’ clean points os used to continuously optimise their management.
• The collected CDW is treated by FERMOVERT if need be, to ensure its safety and quality for further future uses.
• LIPASAM, the waste management company of Seville, plans to analyse the composition of the CDW collected in Clean Points, in order to evaluate the potential uses of the material recovered and be able to take decisions with the aim of recuperating costs for the clean points management and CDW treatment.
• An awareness campaign aimed to introduce these tools to the public and encourage proper handling of CDW was conducted, in order to avoid the common practice of illegal dumping of CDW. 

Relevant instruments

• CDW flow optimisation
• Awareness-raising campaign - More information in Seville's CDW demonstration report

Overview

IDENER has developed digital tools to integrate available data on environmental, economic and social development in Seville municipality in order to facilitate data-driven decision-making and better understanding of the impacts of policies and initiatives on citizen wellbeing, and to ensure the city is on the right track towards the sustainable development goals.

Implementation

• Citizens are able to access information about their waste generation, and how city initiatives are impacting a series of sustainability and wellbeing indicators
• Based on the experiences in CityLoops demonstrations and the data visualised through the city simulation platform, best practice guidelines for construction and demolition waste management were developed
• The guidelines are expected to feed into a new Waste Management Plan for the city of Seville  

Relevant instruments

• City simulation platform & Wellbeing monitoring tool

Overview

LIPASAM, the municipal waste management company of Seville, demonstrated a selective bio-waste collection route was in a city neighbourhoodd. This project aimed to improve both the quantity and purity of the bio-waste collected by the city.

Implementation

• A set of bio-waste collection containers have been installed, for exclusive access to neighbourhood citizens and commercial establishments, with an information and awareness raising campaign to accompany this.
• A software tool designed to optimise the logistics of bio-waste collection has also been developed and tested in the demonstration neighbourhood. 
• Alongside the demonstration action a further (mainly digital) awareness raising campaign was launched across the whole city aimed at encouraging people, mainly large generators such as Horeca bodies (HOtels, REstaurants, and CAtering) to reduce food waste.

Relevant instruments

• OMSW flow optimisation tool
• OMSW diagnosis report

Overview

The methane production capacity of the bio-waste collected from demo action 1, was tested through a process of co-digestion with sewage sludge in a wastewater treatment plant (WWTP). This is being tested as an alternative to the collection and transportation of bio-waste for composting. 

Implementation

• The aim of this action was to reduce the distance travelled by the bio-waste (and consequent fuel consumption and CO₂ emissions), and increase the energy self-sufficiency of the WWTP
• Following this action, feasibility studies were carried out to evaluate the use of bio-waste, as source of biogas to be used as fuel for the fleet of municipal vehicles, urban buses and heavy-duty vehicles for waste collection, among others

Relevant instruments

More information about the implementation of this activity can be found in Seville's Bio-waste demonstration report.