<br>
===Pre Filtration===
===Filtration (by process)===
===Filtration (by medium)===
===Post Filtration===
From here on, the report will focus only on Filtration techniques.
----
==Technology-wise Financial Activities=====Membrane Separation=======Venture Capital Investments====
{|border="2" cellspacing="0" cellpadding="4" width="100%" align="center"
|bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Investor Company'''</font>
|}<br clear="all">
====Private Equity Funding====
{|border="2" cellspacing="0" cellpadding="4" width="100%" align="center"
|bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Company'''</font>
|}<br clear="all">
====Mergers and Acquisitions====
{|border="2" cellspacing="0" cellpadding="4" width="100%" align="center"
|bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Acquirer'''</font>
|}<br clear="all">
===Irradiation=======Venture Capital Investments====
{|border="2" cellspacing="0" cellpadding="4" width="100%" align="center"
|bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Investor Company'''</font>
|}<br clear="all">
====Private Equity Funding====
{|border="2" cellspacing="0" cellpadding="4" width="100%" align="center"
|bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Company'''</font>
|}<br clear="all">
====Mergers and Acquisitions====
{|border="2" cellspacing="0" cellpadding="4" width="100%" align="center"
|bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Acquirer'''</font>
|}<br clear="all">
===Ion Exchange=======Venture Capital Investments====
{|border="2" cellspacing="0" cellpadding="4" width="100%" align="center"
|bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Investor Company'''</font>
|}<br clear="all">
====Private Equity Funding====
{|border="2" cellspacing="0" cellpadding="4" width="100%" align="center"
|bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Company'''</font>
|}<br clear="all">
====Mergers and Acquisitions====
{|border="2" cellspacing="0" cellpadding="4" width="100%" align="center"
|bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Acquirer'''</font>
|}<br clear="all">
===Distillation or Evaporation=======Venture Capital Investments====
{|border="2" cellspacing="0" cellpadding="4" width="100%" align="center"
|bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Investor Company'''</font>
|}<br clear="all">
====Private Equity Funding====
{|border="2" cellspacing="0" cellpadding="4" width="100%" align="center"
|bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Company'''</font>
|}<br clear="all">
====Mergers and Acquisitions====
{|border="2" cellspacing="0" cellpadding="4" width="100%" align="center"
|bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Acquirer'''</font>
|}<br clear="all">
===Filtration by Metal=======Venture Capital Investments====
{|border="2" cellspacing="0" cellpadding="4" width="100%" align="center"
|bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Investor Company'''</font>
|}<br clear="all">
====Private Equity Funding====
{|border="2" cellspacing="0" cellpadding="4" width="100%" align="center"
|bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Company'''</font>
|}<br clear="all">
====Mergers and Acquisitions====
{|border="2" cellspacing="0" cellpadding="4" width="100%" align="center"
|bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Acquirer'''</font>
|}<br clear="all">
===Filtration by Microbes=======Mergers and Acquisitions====
{|border="2" cellspacing="0" cellpadding="4" width="100%" align="center"
|bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Acquirer'''</font>
==Nanotechnology in Water Purification===Market Size ==
* The global market for nanotechnology products used in water treatment was worth an estimated $1.4 billion in 2010
* The market will grow at a compound annual growth rate (CAGR) of 9.7% during the next 5 years to reach a value of $2.2 billion in 2015.
Source: [http://bccresearch.blogspot.in/2011/05/global-market-for-nanotechnology.html BCC Research]
==Startups=====Company Profiles=======NanoH2O====
NanoH2O, Inc. designs, develops, manufactures and markets reverse osmosis (RO) membranes that lower the cost of desalination. Based on breakthrough nanostructured materials and industry-proven polymer technology, licensed original TFN technology from University of California, Los Angeles, NanoH2O<nowiki>’</nowiki>s QuantumFlux membranes dramatically improve desalination energy efficiency and productivity. QuantumFlux seawater reverse osmosis (SWRO) membranes, Standard 61 certified by NSF International for the production of drinking water, deliver the highest flux and the highest salt rejection of any SWRO membrane on the market. QuantumFlux membranes are available in standard 8-inch (20 cm) diameter elements that fit easily into new and existing desalination plants, purifying water from a broad range of sources with improved productivity and water quality. NanoH2O is the 2011 Aquatech Innovation Award Winner in the Water Supply category. Quantum Flux membranes are installed in over 50 commercial sites across six continents, representing over 80,000 m3 per day (21 million gallons per day) in cumulative capacity.
The startup has developed its technology based on research from the University of California at Los Angeles. Its formula adds a nanomaterial to a conventional polymer membrane for desalination in order to alter its structure and make it easier for the water to pass through while it blocks out salt and other minerals. The water is potable afterward, but utilities sometimes add back some of the minerals that are filtered out before delivering the water to homes and businesses.
=====Company Snapshot=====
{|border="2" cellspacing="0" cellpadding="2" width="50%" align="center"
|bgcolor = "#5B9BD5"|<font color="#FFFFFF">'''Company Name'''
|}<br clear="all">
=====Corporate History=====
{|border="2" cellspacing="0" cellpadding="2" width="75%" align="center"
|bgcolor = "#5B9BD5"|'''Date'''
|}<br clear="all">
=====Investment Landscape=====
{|border="2" cellspacing="0" cellpadding="2" width="75%" align="center"
|bgcolor = "#5B9BD5"|'''Date'''
====Puralytics====
Founded in 2007, Puralytics has developed a cost efficient water purification system for distributed use. The company<nowiki>’</nowiki>s products, enabled by advances in semiconductors, optics, and nanotechnology, use natural or LED light to induce photochemical reactions to purify a given volume of water.
Hydration Technologies<nowiki>’</nowiki> humanitarian water division is helping Puralytics sell the SolarBag to nonprofits that will distribute it.
=====Company Snapshot=====
{|border="2" cellspacing="0" cellpadding="2" width="50%" align="center"
|bgcolor = "#5B9BD5"|<font color="#FFFFFF">'''Company Name'''
|}<br clear="all">
=====Corporate History=====
{|border="2" cellspacing="0" cellpadding="2" width="75%" align="center"
|bgcolor = "#5B9BD5"|'''Date'''
|}<br clear="all">
=====Investment Landscape=====
{|border="2" cellspacing="0" cellpadding="2" width="75%" align="center"
|bgcolor = "#5B9BD5"|'''Date'''
|}<br clear="all">
==Universities/Institutes=====IIT Madras===
'''Graphene from Sugar and its Application in Water Purification'''
'''In Collaboration with: VIT Madras'''
===Department of Environmental Geosciences, University of Vienna===
'''Measuring and Modeling Adsorption of PAHs to Carbon Nanotubes Over a Six Order of Magnitude Wide Concentration Range'''
===National Nanotechnology Center, NANOTEC, Thailand===
'''"SOS water" mobile water purifier'''
===LEITAT Technological Center, Spain===
'''Ceramic and Polymeric Membranes for Water Purification of Heavy Metals and Hazardous Organic Compounds'''
===Fraunhofer Institute for Ceramic Technologies and Systems IKTS, Germany===
'''Fouling resistant ceramic honeycomb nanofilters for efficient water treatmen'''t
===Division of Materials Science, Lulea University of Technology, Sweden===
'''Nanoenabled membranes based on bio-materials for water purification'''
Source: [http://nano4water.eu/fileadmin/template/pdfs/Thessaloniki/05_NanoSelect_Mathew.pdf Nano4water]
===Harvard University, School of Engineering and Applied Sciences===
'''An Electrochemical Carbon Nanotube Filter for Water Treatment Applications'''
===Penn Engineering, University of Pennsylvania===
'''High Speed Water Sterilization System for Developing Countries'''
===Wright State University, United States===
'''Metal Nanoparticles on Hierarchical Carbon Structures: New Architecture for Robust Water Purifiers'''