Abstract: Provided is a method of treating wastewater and recovering resources in acrylic fiber production, comprising the following steps: 1) filtering wastewater from water-washing and filtering unit of acrylic fiber plants by a filter to intercept and recover high-molecular-weight polymer contained therein, and then making the recovered polymer returned back to the acrylic fiber production and entered the finished product, optionally, reusing part of filtered wastewater as low salinity water in the water-washing and filtering unit: 2) removing non-interceptable high-molecular-weight polymer in the wastewater by subjecting the wastewater to coagulation and air floatation treatment; 3) introducing the effluent into biological treatment unit and adding polyvalent metal ions as an adsorption promoter to increase the removal of the non-biodegradable organics in the biological treatment unit; and 4) removing the organics remained in the effluent from the biological treatment unit by an advanced treatment.

Abstract: Disclosed is a photovoltaic container (100), relating to the field of containers. The technical solution mainly adopted is: a photovoltaic container includes a photovoltaic assembly (1), a support frame (2) and a container body (3); wherein the container body (3) includes a container body framework; the photovoltaic assembly (1) is mounted on the container body framework through the support frame (2), and is located outside the container body (3) to make the photovoltaic assembly (1) supported by the container body framework. Because the photovoltaic assembly (1) is mounted on the container body framework of the container (100) through the support frame (2), the container body framework has a higher strength and thus can provide strong support to the photovoltaic assembly (1).

Abstract: Provided is a method of treating wastewater and recovering resources in acrylic fiber production, comprising the following steps: 1) filtering wastewater from water-washing and filtering unit of acrylic fiber plants by a filter to intercept and recover high-molecular-weight polymer contained therein, and then making the recovered polymer returned back to the acrylic fiber production and entered the finished product, optionally, reusing part of filtered wastewater as low salinity water in the water-washing and filtering unit; 2) removing non-interceptable high-molecular-weight polymer in the wastewater by subjecting the wastewater to coagulation and air floatation treatment; 3) introducing the effluent into biological treatment unit and adding polyvalent metal ions as an adsorption promoter to increase the removal of the non-biodegradable organics in the biological treatment unit; and 4) removing the organics remained in the effluent from the biological treatment unit by an advanced treatment.

Abstract: A preparation method of an iron-cobalt fenton-like catalyst includes steps of: adopting FeCl2.4H2O and CoCl2.6H2O as reaction precursors, KBH4 as a reaction reducing agent, and polyvinyl pyrrolidone (PVP) as a surface protecting agent; preparing with a liquid phase reduction method; and after aging, suction filtration, washing, and vacuum drying, obtaining a product of the iron-cobalt fenton-like catalyst. The iron-cobalt fenton-like catalyst has a fast reaction, a relatively high treatment efficiency and a relatively wide adaptability. Moreover, an application of the iron-cobalt fenton-like catalyst in an industrial wastewater treatment is provided.

Abstract: A preparation method of an iron-cobalt fenton-like catalyst includes steps of: adopting FeCl2.4H2O and CoCl2.6H2O as reaction precursors, KBH4 as a reaction reducing agent, and polyvinyl pyrrolidone (PVP) as a surface protecting agent; preparing with a liquid phase reduction method; and after aging, suction filtration, washing, and vacuum drying, obtaining a product of the iron-cobalt fenton-like catalyst. The iron-cobalt fenton-like catalyst has a fast reaction, a relatively high treatment efficiency and a relatively wide adaptability. Moreover, an application of the iron-cobalt fenton-like catalyst in an industrial wastewater treatment is provided.