High-temperature-resistant chlorella strain easy to settle and separate and application thereof

The invention discloses a high-temperature-resistant chlorella strain easy to settle and separate and application of the high-temperature-resistant chlorella strain, the chlorella strain named as Sorojin chlorella Z3 is preserved in China Center for Type Culture Collection on July 15, 2022, the preservation number is CCTCC M 20221125Z3, and the chlorella strain can grow in an autotrophic manner or can grow in a heterotrophic manner and in a healthy manner by utilizing organic carbon sources such as glucose and the like, can tolerate higher temperature, and can be used for preparing a high-temperature-resistant chlorella strain. Under a high-temperature culture condition, the cells have good sedimentation performance and can almost completely settle in a short time; and the strain can be used as an excellent algae species for culture and production of algae-related products, and also can be used for wastewater treatment by using excellent growth and sedimentation performance of the strain. The microalgae strai