BioLargo was fortunate to participate in a recent interview that contributed to a comprehensive market synopsis on the Ballast Water Treatment industry, published in the February 2017 issue of Global Water Intelligence. GWI is widely known as the publication leader in high-value business information for the global water industry.
Ultraviolet and electro-chlorination are today’s leading systems, but both have issues that must be overcome. For one, chlorination-based technologies do not typically treat water upon discharge of ballast water, but rather treat water only during uptake. UV systems, on the other hand, treat at both ends. Young Chang, CEO of C&C Panasia, explains that though this is not currently an issue, the USCG and Marine Environmental Protection Committee have been investigating whether all systems should treat on discharge as well as uptake, following the discovery of some organisms hidden in sediment may not be killed. “It is highly possible in the next few years there will be new requirements saying that all types of treatment systems must treat on deballasting,” Chang commented. “If that happens, non-UV based technologies will have a tough time to accommodate that and the system may get more complicated.” Another issue with chlorine-based systems is that their active chemicals must be removed from discharge water, meaning a neutralizer injection is required during deballasting to avoid discharge of harmful chemicals.