Plantas de tratamiento de aguas residuales industriales y análisis de resultados e ideas de casi-vertido cero
Dec 05, 2021
Plantas de tratamiento de aguas residuales industriales y análisis de resultados e ideas de casi-vertido cero
Industrial production is an important part of our country's economic development and is closely related to all sectors of the national economy. Polluting the environment has always been a sharp sword hanging over the heads of industrial enterprises. Energy saving and emission reduction has always been a difficult problem that industrial enterprises cannot avoid. While industrial products benefit human beings, we will also forget the environmental protection alarm that was raised by a series of serious environmental emergencies represented by the Songhua River water pollution incident. The zero-discharge technology of wastewater has many advantages: 90-99 percent of the water can be recovered from the discharged sewage and reused for industrial production, which greatly reduces the water consumption in industrial production, greatly alleviates the problem of water scarcity, and completely solves the environmental problem. Pollution issues, recovery of solid by-products. It can be seen that nearly zero discharge of wastewater is the general trend.
As early as the early 1970s, the word "zero discharge" appeared. The world's first factory to practice zero discharge technology for wastewater was a power plant in Gainesville, north-central Florida, USA. "Emission" refers to "zero waste", and based on the premise of "the earth is limited", the waste that has to be discharged will be recycled, and finally the sustainable use of non-renewable resources and energy will be realized.
The economic benefits of the disc filter system are considerable. Experts pointed out that the "zero discharge" pursued by many enterprises needs to solve and overcome the problem of concentrated water, which is high in salt, high COD and large in volume. The previous concentrated water evaporation process has high cost and difficult to achieve heating conditions. Usually the concentrated water after double membrane ultrafiltration basically achieves the environmental protection concept of near-zero emission technology. At the same time, it is necessary to make the concentrated water acceptable in terms of treatment cost and feasible in terms of project implementation.
