Urban Wastewater Physical Treatment Engineering

The first step in Jingbo's Urban Wastewater Physical Treatment Engineering is to remove the large, visible impurities from the water, a crucial step. This involves using a screen, similar to a large sieve used for sifting flour at home. As the wastewater passes through, large debris like plastic bags, branches, and hair are all filtered out. Otherwise, these items would easily clog or damage the pumps and pipes further down the line.

After passing through the screen, the wastewater flows into a grit chamber. What's the purpose of this chamber? It controls the water flow speed, allowing the water to move slowly. This allows heavier particles in the water, such as sand, small stones, and coal ash, to settle to the bottom due to gravity. If these particles aren't removed, they can wear down subsequent equipment and accumulate in other tanks, making cleaning very difficult.

Next is the primary sedimentation tank. This is a very large tank where the wastewater slowly "rests." With the slow water flow, the settleable solids in the water gradually sink to the bottom, forming "primary sludge." Generally, this step removes 50% to 60% of the settleable solids and 20% to 30% of the organic matter. However, it's important to note that this step only removes the visible impurities; it has little effect on dissolved organic matter, sticky substances, and invisible nutrients like nitrogen and phosphorus, which require further treatment in subsequent steps. Furthermore, wastewater treatment inevitably produces a significant amount of sludge. This includes not only the primary sludge from the primary sedimentation tank but also excess activated sludge from later stages. This sludge cannot be simply discarded; it must be properly treated. First, the sludge is concentrated to reduce its volume and save space. Then, it is placed in an environment with little or no oxygen for "digestion." This process stabilizes the sludge, preventing it from rotting or deteriorating, and also produces biogas, which can be used as an energy source, such as for heating or power generation. Afterward, machines are used to squeeze the water out of the sludge, forming sludge cakes. Finally, these sludge cakes are either used to improve soil fertility, buried in designated areas, or used as raw materials for construction materials. The goal is to utilize the sludge as much as possible while ensuring safe and space-efficient disposal.

Product Specifications

Product Advantages

Moreover, Urban Wastewater Physical Treatment Engineering is very standardized, adhering to national and local environmental regulations. It's not just a single piece of equipment; it integrates various components such as screens and grit chambers, including all the necessary electrical circuits and control switches, forming a complete system. Although the core of wastewater treatment relies on microorganisms, the initial physical treatment is also crucial, laying the foundation for subsequent processes.

In addition, this Urban Wastewater Physical Treatment Engineering system is generally large-scale, serving an entire city or a large area, and is closely related to the daily lives of ordinary citizens. It operates 24 hours a day, continuously treating wastewater. If the influent flow rate increases or the water becomes dirtier, the equipment parameters can be adjusted to ensure the treatment system continues to function properly.

In summary, the Urban Wastewater Physical Treatment Engineering system developed by Wuxi Jingbo Environmental Protection is technically reliable and has a well-developed process. It benefits the city's water environment, reduces river pollution, improves public health, and saves considerable costs, bringing many practical benefits.