Working principle of integrated Wastewater treatment equipment
The core technology of integrated Wastewater treatment equipment is separation membrane technology. Separation membrane technology is a technique that utilizes the selective permeability of semi permeable membranes to separate different components in a mixture. Separation membrane technology can be classified into different types based on the driving force and particle size of separation, such as reverse osmosis, nanofiltration, ultrafiltration, microfiltration, etc. Separation membrane technology, characterized by high separation efficiency, low energy consumption, small footprint, simple operation, and strong controllability, has been widely used in fields such as water treatment, food, medicine, chemical engineering, and environmental protection.
Pre treatment: Remove large particles, impurities, grease, floating objects, etc. from Wastewater to prevent blockage or damage to subsequent equipment and membrane components.
Biological treatment: converting organic matter, nitrogen, phosphorus and other pollutants in wastewater into harmless or easily separable substances such as carbon dioxide, water, sludge, etc. through the metabolic process of microorganisms.
Membrane separation: The biological treated wastewater is separated from sludge by the selective permeability of the separation membrane, resulting in clean water and concentrated sludge. According to the water quality requirements of the effluent, different types of separation membranes can be selected, such as reverse osmosis, nanofiltration, ultrafiltration, microfiltration, etc., to achieve different water quality standards, such as drinking water, industrial water, agricultural water, landscape water, etc.
Reclaimed water: Clean water separated by membranes is disinfected and regulated according to different purposes, and then transported to the water point to achieve water recycling, save water resources, and reduce water bills.
Energy recovery: The concentrated sludge after membrane separation is converted into biogas or oil and gas through anaerobic digestion or pyrolysis, and then biogas or oil and gas is used to generate electricity or heat, achieving energy recovery and utilization, reducing energy consumption and emissions.
Sludge treatment: The remaining sludge after energy recovery is reduced in volume and weight through dehydration, drying, stabilization, and other methods, and then subjected to harmless treatment such as composting, landfilling, incineration, etc., to achieve the resource utilization or disposal of sludge and avoid secondary pollution.
