The choice of process flow for dairy wastewater treatment depends on the characteristics of the wastewater and the effluent discharge requirements. The treatment process is primarily biological, and based on the main unit responsible for pollutant removal load, it can be divided into aerobic treatment systems and “anaerobic + aerobic”
Currently, the most commonly used processes for treating dairy wastewater include biological contact oxidation, stand-alone aerobic treatment, anaerobic + aerobic treatment, and the SBR process and its improved versions. 1. Biological Contact Oxidation: This method involves loading packing material into a bioreactor. Microorganisms adhere to the packing material, forming a
The main raw materials and resources for dairy production in dairy factories are fresh milk, sugar, peanuts, walnuts, electricity, water, and coal. During the dairy production process, wastewater such as tank washing water and bottle washing water is generated. This wastewater, along with floor washing water, toilet flushing water, and
1. Wastewater generated during the wine production process mainly originates from multiple production stages. Rice washing water and soaking water from the brewing stage contain a large amount of organic matter; waste liquid from the fermentation stage is rich in sugars, proteins, and yeast residue; wastewater from the distillation stage
Wastewater treatment at a brewery is a complex system engineering project that requires a multi-stage combined process, taking into account the high concentration of organic matter and large fluctuations in water quality and quantity. The core objectives are to effectively degrade organic matter, achieve compliant discharge, and recover resources as
Phosphorus removal methods for brewing wastewater are generally divided into biological and chemical methods: 1. Biological methods: Biological phosphorus removal refers to the nitrification and decomposition of organic phosphorus or metaphosphate by aerobic bacteria under certain conditions. Some phosphorus is absorbed by the microorganisms, becoming microbial sludge; the remaining phosphorus
1. Sugar refining wastewater mainly originates from sugar production and the comprehensive utilization of its by-products. It includes various wastewaters generated during the sugar refining process using sugar beets or sugarcane as raw materials, such as chute wastewater, sugar pressing wastewater, distillation wastewater, and surface washing water. 2. Main characteristics
Sugar refining wastewater is a typical high-concentration organic wastewater, characterized by large production volume, high COD (Chemical Oxygen Demand) and BOD5 (Biochemical Oxygen Demand) concentrations, good biodegradability, and deep color. Its treatment process typically employs a multi-stage combination to achieve efficient and stable purification. The mainstream process flow can be
If sugar refining wastewater is discharged directly without treatment, it will cause serious harm to the aquatic environment and ecosystem, mainly in the following aspects: 1. Depletion of dissolved oxygen in water, leading to black and smelly water bodies. Sugar refining wastewater contains high concentrations of carbohydrates, proteins, pectin, and
There are many methods for disinfecting hospital wastewater, broadly categorized into physical and chemical methods. Physical methods include radiation, ultraviolet light, heating, and freezing. Physical methods are generally suitable for smaller volumes of wastewater, and their treatment effect is often less pronounced than chemical methods. However, a significant advantage is