acrylates are prepared in a single-step method from a mixture of acrylic acid and at least one biobased oil andor its derivative, including at least one unsaturation. The charged water producing tank includes a raw water inlet, a charged water outlet, and a ceramic particle-filled part. Each step body includes a device for the supplying of electrical current to the step body. The invention provides the flexibility of choice for the customers to use isolation or not between the devices and takes up less PC board space because only a single package is used on the board.