Hamse Kjerstadius

Development engineer, NSVA

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Ongoing Projects

Decentralized wastewater treatment

In the Oceanhamnen district of Helsingborg, wastewater is source-separated into two fractions: greywater and blackwater….

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Completed Projects

Microplastics in urban waters

PHD PROJECT Microplastics (plastic particles smaller than 5 mm) have received increased attention in the…

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Ongoing Projects

Treatment of source separated greywater for lower effluent requirements with MBBR and Horizontal Filters

PHD PROJECT In the future we will need to achieve lower concentrations of nutrients like…

Completed Projects

MACRO – Food in circular robust systems, step 3

MACRO (Food in Circular Robust Systems, step 3) is a Vinnova project within Challenge-driven innovation…

Ongoing Projects

The untapped potential of greywater: Decentralised treatment and use for blue-green public spaces

This project aims to show how green-blue infrastructure can be integrated into urban areas by…

Completed Projects

Run4Life – Recovery & utilisation of nutrients 4 low impact fertiliser

Run4Life demonstrates an alternative strategy for improving the recovery of resources from wastewaters, using a…

Completed Projects

NPHarvest – Sustainable recycling of phosphorus and nitrogen

NPHarvest consists of a pre-treatment with calcium hydroxide which results in the precipitation of phosphorus…

Cultivating urban bazaars – for sustainable, job-creating urban development, step 3

In unused underground spaces or disused industrial premises, cultivations are created for fresh spices, lettuce…

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Completed Projects

Nutrient recycling from wastewater – literature study: an overview of technologies, costs and environmental impact

The report describes established and new technologies for nitrogen recovery from waste­water and compares the…