Low-carbon, environment-friendly, economical and reasonable water treatment process flow and method for water treatment plant

Abstract

The invention discloses a low-carbon, environment-friendly, economical and reasonable water treatment process flow and method for a water treatment plant, and belongs to the fields of water resource reasonable utilization technology and environmental protection. The water treatment process flow and method comprises the following steps of: adding a coagulant; adding a disinfectant; purifying water; and utilizing and treating wastewater. The invention has the advantages that: problems of the conventional process are solved; and the water treatment process and method for the water treatment plant is low-carbon, environment-friendly, economical, reasonable, stable and reliable in operation and convenient to manage and maintain, ensures water treatment effect to reduce project investment and daily operating cost.

Description

(1) Technical field [0001] The invention relates to a process and a method for water treatment in a water purification plant, and belongs to the fields of rational utilization of water resources and environmental protection. (2) Background technology [0002] Low-carbon environmental protection and more effective and reasonable use of water resources are increasingly valued by people. The economic model based on low energy consumption, low pollution and low emissions - "low-carbon economy" has become an inevitable choice for the future development of the world economy. Low-carbon economy has increasingly become the consensus of countries all over the world. The "Suggestions on Formulating the Twelfth Five-Year Plan for National Economic and Social Development" deliberated and approved at the Fifth Plenary Session of the Seventeenth Central Committee clearly stated that scientific development should be the theme, and the transformation of economic development mode should be t...

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Problems solved by technology

[0003] The waste water produced during the water treatment process of the water purification plant has no good recycling and harmless treatment methods in the traditional water treatment. The customary practice is to discharge the waste water directly into the nearby water body, which reduces the utilization rate of raw water. It implicitly increases the cost of water treatment for enterprises and reduces the economic benefits of enterprises. On the other hand, it causes environmental pollution, which not only wastes water resources, but also pollutes water bodies. At the same time, it will also cause problems such as river siltation. Carbon Environmental Protection Requirements

Under the pressure of environmental pollution and ecological protection, some enterprises also use belt filter press to dehydrate part of the production wastewater, but this will increase construction investment and treatment costs, and the belt filter press has a small processing capacity. , the maintenance workload is heavy, the flushing water consumption is large, the sludge retention rate is low, and the operating cost is high, which is unbearable for general enterprises

[0004] In addition, the traditional water treatment process still has the following problems: 1. The selection of coagulant dosing process is unreasonable, resulting in excessive chemical consumption per cubic meter of water in the production process; 2. The selection of disinfectant process is unreasonable, and water treatment Toxic by-products are likely to be produced during the disinfection process, which is harmful to human health. At the same time, disinfectants have high requirements for transportation and storage; 3. The green water in the factory area is not integrated into the water treatment process, which makes the production cost of the enterprise increase implicitly , reduce the economic benefits of the enterprise, and at the same time, the water treatment effect cannot reach the standard stably and reliably

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