Our students AMAL KUMAR T, PRANAV KRISHNA, HAREESH M, VISHNU MURALEEDHARAN, VISHNU MOHANAN, VISHNU M,ABHIRAM SATHYAN has developed a solution for this by their project using PVC and existing circuit made using proximity sensor, hydro pump ,a power supply and a transistor. They manufactured around 11 sanitizers according to the requirements from various organisations and there project was a great success.
Please go through the PDF,
AUTOMATIC HAND SANITIZER.pdfTo know more please click below link,
http://www.thenehrugroup.com/happening/ncerc/automatic-hand-sanitizer-manufactured-by-mechanical-engineering-students-ncerc/