Mixed Filler
Wastewater treatment requires different technologies depending on the reasons for the formation of waste water and the complexity of the treatment process.
Wastewater Quality
Domestic wastewater typically exhibits stable water quality. Green Leaf Environmental generally employs treatments such as acidification, aerobic biological treatment, and disinfection. Industrial wastewater, however, requires the selection of an appropriate process based on its specific water quality. It is particularly important to note that for wastewater treated using aerobic biological treatment processes, the biodegradability of the wastewater should be considered, usually requiring a COD/BOD ratio of 0.3 or higher. If this requirement is not met, anaerobic biological hydrolysis and acidification can be considered to enhance the biodegradability of the wastewater, or alternative non-biological treatment methods such as physical or chemical methods can be explored.
2. Wastewater Treatment Level
This serves as the primary basis for selecting wastewater treatment processes. The degree of wastewater treatment by Hengxin Environmental Protection is fundamentally determined by the characteristics of the wastewater, the destination of the treated water, and the self-purification capacity of the receiving water body. However, currently, the determination of the wastewater treatment level primarily complies with national laws, regulations, and technical policies. Typically, environmental management authorities control the wastewater discharge concentration based on the "Comprehensive Emission Standard for Wastewater" and related industry-specific emission standards. Higher economic development regions may also have stricter local emission standards. Therefore, regardless of the type of wastewater to be treated or the chosen treatment process and degree, the standard and prerequisite should be that the effluent from the treatment system meets the required standards. Prevention and treatment of water body environmental pollution should be conducted in accordance with laws, regulations, and policies.
3. Construction and Operation Costs
When considering construction and operation costs, the premise should be that the treated water meets the water quality standards. Under this premise, process flows with low construction and operation costs should be prioritized. Additionally, reducing the land area is an important measure to lower construction costs.
4. Degree of Construction Difficulty
The difficulty of construction projects is also one of the factors influencing the selection of the process flow. In areas with high groundwater levels and poor geological conditions, it is not advisable to use treatment structures with deep depths and high construction difficulty.
5. Local natural and social conditions
Local terrain and climate conditions also have an impact on the selection of wastewater treatment processes. For instance, if the local climate is cold, the process should be able to operate normally during the low-temperature season after appropriate technical measures are taken, ensuring the achievement of water quality standards. Social conditions such as raw materials, water resources, and power supply are also factors that should be considered in the process selection.
6. Wastewater volume
Water volume, in addition to water quality, is also a contributing factor. For wastewater with significant fluctuations in volume and quality, it is advisable to first consider processes with strong resistance to shock loading, or to establish buffer devices such as regulating pools to minimize adverse effects as much as possible.
7. Did the process generate new conflicts?
During the wastewater treatment process, attention should be paid to the potential for secondary pollution.
In summary, the selection of a wastewater treatment process should involve a comprehensive consideration of various factors, and a technical and economic comparison of multiple proposals is necessary to reach a conclusion.
