Officials broke ground Wednesday on a pilot plant to demonstrate a new wastewater treatment technology that promises to save energy, land, water and capital expense over existing technologies. The project is being funded through a $1.56 million grant from the California Energy Commission. The technology was developed by BDPEnviroTech, a Laguna Hills-based company that, by the end 2017, will have more than 30 projects using this technology operational in China, said CEO Eric Li.