NAMI’s Contribution to the S&T Industry and Environmental Protection Ka Ming NG ( 吳嘉名 ) CEO Nano and Advanced Materials Institute, Ltd. Chair Professor Chemical and Biomolecular Engineering Department The Hong Kong University of Science and Technology Clear Water Bay, Hong Kong Presentation at Networking Dinner “Use of Innovation and Technology in Environmental Protection and Testing” January 19, 2011 Acknowledgments: Prepared by Sarina LAU and Ka Wai WONG

The Strategy – HK as a Technology Market Place Government Industry University R&D Institutes Innovation policies Fundamentals High tech manufacturing Capital Market Promotion of economic development Human capital Product development Finance Branding Pilot testing and prototyping Process development $ $ $

NAMI Office & Laboratories The Hong Kong University of Science and Technology

NAMI Office at The Hong Kong University of Science and Technology (HKUST)

Satellite Offices and Laboratories at HK Science Park Lakeside 2 Offices on 6 th floor Biotech Centre 1 Laboratories on 3rd floor

Areas covered by Hong Kong Council for Testing and Certification (HKCTC) Market sectors covered by NAMI Chinese Medicine Food Jewellery Environmental Protection Construction Materials ICT Sustainable Energy Environmental Technologies Others CTC NAMI Construction Materials Medical and Healthcare Products Display and Solid State Lighting

Areas covered by Hong Kong Council for Testing and Certification (HKCTC) Market sectors covered by NAMI Chinese Medicine Food Jewellery Environmental Protection Construction Materials ICT Sustainable Energy Environmental Technologies Others CTCNAMI Construction Materials Medical and Healthcare Products Display and Solid State Lighting

The Road to Accreditation and Certification e.g. Nano-Mark in Taiwan Analysis & Characterization 1) Ingredients? 2)Functional Performance? Generalization & Categorization of Methodology: 1)Data Base 2)Results Establishment of standard test methods Accreditation Product Certification Adaptation, Maintenance & Upgrade

NAMI’s Participation in Testing and Certification Generalization & Categorization of Methodology Establishment of standard test methods Accreditation Product Certification Adaptation, Maintenance & Upgrade NAMI Analysis & Characterization To develop new (and upgrade existing) testing methods for materials and the corresponding processing technologies To support the local S&T industry To enhance the technical competitiveness of the local labor force To gain worldwide recognition

Construction Materials Claimed to contain nanoparticles (not specified) within the coating making a non-sticking surface  Functional tests: Surface roughness, hydrophobicity, hardness  Material tests: Nature of nanoparticles? Size? Form?

Food Claimed to have core-shell micelles containing vitamin/protein/nutrient  Functional tests: Activity and efficacy of vitamin/active ingredient?  Material tests: Presence of nanoparticles / chemicals? Size? Core-shell?

Environmental Protection A 4-in-1 air filter claimed to have one layer containing “NanoSilver” and one layer having “TiO 2 nanoparticles” Claimed to be anti-bacterial and decomposes VOCs  Functional tests: Anti-bacterial and photocatalytic properties  Material tests: Presence of Ag and TiO 2 ? Size? Distribution?

Medical & Healthcare Products TiO 2 and ZnO nanoparticles are commonly used in sunscreens to block UV light A product claimed to contain ZnO and TiO 2 nanoparticles and offer a specified SPF  Functional tests: UV absorption  Material tests: Presence of nano ZnO and TiO 2 ? Size? Size distribution?

Nano Materials for Air Purification PhotocatalystCoating (1)Organic pollutant adsorbs to surface (2)Adsorbed pollutant breaks down (3)Final products: CO 2 and Water Photocatalytic Self Cleaning & Anti Bacteria Coating (TiO 2, Nano Ag) Different Supporting Media (filter element, pipe, wall etc) Air Filter, Self Cleaning & Anti Bacteria Piping, Building & Interior Surfaces

15 Industrial Wastewater Effluent Wastewater Effluent (million ton per yr) Textile industry1,8181,9982,320 Pulp and paper industry3,1873,6743,744 Mining industry1,1221,1671,336 Chemical industry3,2323,3913,360 Food industry1,7392,0521,936 Pharmaceutical industry Other industries8,2578,9167,679 Total19,78421,59820,804 Source: 中華人民共和國環境保護局 2006 年環境統計年報  Huge water consumption in various industries in China As a comparison, Hong Kong consumes ~ 1B ton per year!

Wastewater Effluent by Province 16

17 Industrial Wastewater Pollutants Pulp and paper Distillery and brewery Printed circuit board DyeingFood Organic InorganicHeavy metalsMicrobes Formaldehyde Azo dyes Surfactants EDTA PVA POPs E. coli Salmonella Vibrio parahaemolyticus Staphylococcus aureus Bacillus subtilis Copper Palladium Tin Nickel Lead NaOH Na 2 CO 3 H 2 O 2 H 2 SO 4 HNO 3  There is a variety of toxic pollutants and contaminants. Manufacturing Processes

18 Wastewater Characterization pH, Conductivity, Turbidity Measurement Ultra-violet / Visible Spectroscopy Inductively Coupled Plasma (ICP) Total Carbon Content (TOC) Wastewater Samples Ion Chromatography (IC) Chemical & Biochemical oxygen demand (COD, BOD) Measurement Solids content (Total dissolved solids TDS, Total suspended solids TSS)

19 Techniques for Wastewater Treatment Plants Wastewater Treatment Techniques Adsorption Isotherm Apparatus Fixed Bed Adsorption System RO Membrane Unit Batch Adsorption Kinetic Tank Ozone Treatment Coagulation (Jar Test) Bioreactor Bioreaction Kinetics

20 Bioaugmentation Biotreatment using consortia with isolated bacteria from mixed sludge for wastewater with given pollutants Single population Consortium Bacteria 1 Substrate 1 Simple product 1 Intermediate 1 Bacteria 2Bacteria 1 Substrate Simple product Intermediate Enzyme 1Enzyme 2 Substrate 2 Intermediate 2 Simple product 1 Metabolites, etc. Intercellular interactions include: Commensalism, amensalism, mutualism, parasitism Bacteria cultivation Isolation Identification

Contact Information Prof. Ka M. Ng Nano and Advanced Materials Limited Hong Kong University of Science and Technology Hong Kong Phone: