Industrial symbiosis - Rizhao

"In the Rizhao Economic and Technology Development Area, the resource flows of 31 companies in the cereal, oil and food, machinery, paper, textiles, wine refining, and biochemical industries are interlinked. A paper plant receives wood chips from a nearby wood manufacturer as resource inputs, and provides residue for fertilizer and raw materials for construction products in return. A chemical factory is supplied with vinasse, a waste product from sugar produced by the brewery in the same area."

(Source: ICLEI, 2021, City Practitioners Handbook: Circular Food Systems)