HL
University of California, Riverside
A chemical-free UV-LED module protecting a home dialysis machine from chloramine.
Sponsored researchIn developmentUniversity
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Receive a weekly email digest of the latest point of use water treatment technologies added by the network.Browse 215 solutions in point-of-use treatment systems on the Halo network
Updated Sept 29, 2026
Point-of-use treatment systems covers treating water where it is drunk, not where it is supplied. On Halo, the solutions cover chloramine at the tap, softening at the faucet, sorbent water harvesting, and passive and condensing harvesters. Sign up to search the full network and post your specific need.
Chloramine at the tap
HL
BY
University of California, Davis
UV LEDs with ozone generated in the device, sized for a household.
Sponsored researchIn developmentUniversity
The Ohio State University
Excilamps and tunable LEDs take total chlorine from 4.0 mg/L under 0.1.
Sponsored researchIn developmentUniversity
DJ
University of California, Los Angeles
A conductive porous electrode reducing chloramines in a single pass.
Sponsored researchIn developmentUniversity
An electrochemical filter taking chloramines, metals and bacteria together.
Co-developmentIn developmentStartup
Softening at the faucet
GN
University of Wisconsin, Milwaukee
A four-layer faucet filter removing calcium and magnesium past 1.5 L/min.
Co-developmentIn developmentUniversity
MH
Arizona State University
Countercurrent fluidization crystallizes out 80% of hardness, and nothing clogs.
Sponsored researchIn developmentUniversity
Clarkson University
An iron redox couple removing 98% of salt at one volt, with no gas produced.
Sponsored researchIn developmentUniversity
JW
Graphene taking hardness, heavy metals and microplastics in one compact unit.
Sponsored researchIn developmentUniversity
Sorbent water harvesting
A salt-based liquid desiccant in a container, 40 litres an hour in arid air.
Sponsored researchIn developmentSupplier
Carbon nanomaterials pulling 1.2g of water per gram of sorbent in half an hour.
Sponsored researchIn developmentSupplier
RG
A liquid absorbing water in desert air, so nothing has to be condensed.
Sponsored researchIn developmentStartup
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Who is working on point-of-use treatment systems
Organizations in point-of-use treatment systems
Universities, startups, and suppliers with solutions in point-of-use treatment systems.
Point of use water treatment organizations
Innovators in point-of-use treatment systems
Researchers and inventors advancing point of use water treatment technologies.
Point of use water treatment expertsAbout point-of-use treatment systems
Two problems account for most of the work on Halo. Chloramine has to come out at the tap, especially for home dialysis, and hardness has to come out at a flow rate a faucet can deliver. Beside them sits a large cluster that treats no water at all and makes it from air. On Halo it spans six groups, including chloramine at the tap, softening at the faucet, and sorbent water harvesting.
Stage of development. Work on point-of-use treatment systems on Halo is split between university programs and companies. 32% of the solutions are in market. Arizona State University has the most, followed by Northwestern University. Co-development and sponsored research are the usual partnering routes, and about 59% of the solutions that state terms offer pilot engagements.
Three trends in point of use water treatment technologies on Halo
Chloramine, and specifically dialysis. Five entries remove chloramine at the point of use and three do it with light: excilamps and tunable LEDs taking 4.0 mg/L under 0.1, a household device pairing UV LEDs with ozone generated inside it, and a UV-LED module built to protect a home dialysis machine. Chloramine is harmless to drink and dangerous in a dialysate, and the clinical case is what pulls this cluster.
Sixteen ways to condense the same air. Seven use a sorbent or desiccant, nine condense or catch water passively, and the yields are quoted in the same units so they can be compared: 3 litres per square metre a day, 10 litres per square metre a day, 40 litres an hour, 5,000 litres a day. Two use no energy at all, one copying a desert plant's leaf and one retrofitting a fog mesh to a cooling tower.
The test has to work in a kitchen. Seven detection entries are built for a kitchen or a field, not a laboratory: nanobodies in a handheld kit, a nanomechanical cantilever carrying cell-free biology, viable microbes counted in five minutes with no amplification, reversible reagent-free chlorine optics. Every one of them removes a step that needs a technician.
190organizations
215solutions listed
56%from university labs
32%in market
Frequently asked questions
What are point of use water treatment technologies?
Point-of-use treatment systems covers treating water where it is drunk, not where it is supplied. It spans chloramine removal at a tap or a dialysis machine, softening built into a faucet filter, harvesting drinking water out of the air by sorbent or by condensation, compact disinfection modules, and the tests a person can run on the spot. Appliance makers, device manufacturers and off-grid operators are the buyers.
What are examples of point of use water treatment technologies?
Five examples of point of use water treatment technologies on Halo include:
- A chemical-free UV-LED module protecting a home dialysis machine from chloramine. (University of California, Riverside)
- A four-layer faucet filter removing calcium and magnesium past 1.5 L/min. (University of Wisconsin, Milwaukee)
- A salt-based liquid desiccant in a container, 40 litres an hour in arid air. (H2OLL)
- Wavy surfaces copied from a desert plant, catching dew and fog with no power. (Northwestern University)
- Nanobodies in a handheld kit, watching for endotoxins continuously. (Quantitative BioSciences, Inc.)
What are the latest point of use water treatment innovations?
The most recently updated point of use water treatment technologies on Halo include:
Which companies and suppliers are developing point of use water treatment technologies?
There are 190 organizations with point of use water treatment technologies on Halo, 68 of them universities and research institutions. Among them are University of California, Riverside, University of California, Davis, and The Ohio State University. Most offer co-development or sponsored research. Sign up to see every organization working in the area and to send them your specific need.
How do I find point of use water treatment research partners?
Browsing point of use water treatment technologies on Halo is free. Sign up to search the full network and save the ones you want. Post your specific need to get exact matches. Organizations reply directly on the platform.
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