Life in Hubei sewage treatment equipment treatment process selection with the general life of sewage treatment equipment process selection, is a more complex process, not only to consider the project's water quality to meet the standards, but also need to take into account the investment costs of the project as well as operation and maintenance management.
The following factors can be referred to:
1, sewage treatment facilities, pollutant discharge standards
Life sewage treatment equipment discharge standards will generally be based on the project's scale of treatment, drainage destination, etc. are directly or indirectly related. Domestic provinces for the treatment scale of more than 500 cubic meters / day of domestic sewage treatment projects require the implementation of more than one A or higher requirements for direct discharge to the water source around the domestic sewage treatment works of the emission standards tend to be more stringent. Traditional domestic sewage treatment equipment used in the process is more difficult to stabilize the standard, similar to the scene of the sewage treatment project in the choice of process is generally recommended to choose the MBR process, combined process, depth treatment process.
2, influent water quality parameters
Since the provinces and regions with large differences in living habits of residents, the southeast coastal areas COD, BOD average value may be less than 300mg / L, while in the central and western regions may be more than 500mg / L. Therefore, in order to better implement the project of domestic wastewater treatment, the project is best to detect the quality of influent water in the process design phase, the best. Combined with the characteristics of domestic wastewater pollutants to match a reasonable process. In addition, different domestic wastewater treatment processes for ammonia nitrogen and total phosphorus removal efficiency has obvious differences, combined with the project discharge standards using targeted processes, can enhance the project's ability to meet the discharge standards.
3, sewage treatment project construction and operation and maintenance costs
Life sewage treatment process selection must take into account the cost of construction and operation and maintenance costs, in the pursuit of emission standards while taking into account the project operation and management costs, as far as possible, the use of low-cost, easy to manage the products and technologies.
4, engineering and construction factors
The degree of difficulty of engineering and construction is also one of the factors affecting the choice of process. Affected by the terrain and landscape, the project's construction costs are significantly different, such as mountains and plains the same sewage treatment works in the construction of a significant difference, resulting in a significantly different duration and cost.