As one of the many developments and utilizations of solar energy, solar photovoltaic power generation has the characteristics of non-polluting, renewable, flexible, and storable. Now the photovoltaic power generation system has been practically applied in road lighting, residential buildings and other fields. The water treatment industry, with its unique industry characteristics, is also suitable for the application of photovoltaic power generation systems.
Photovoltaic power generation system has the following advantages in the application of water treatment industry:
(1) There are no tall buildings around
Most of the water treatment plants are located in relatively remote areas where industrial enterprises are relatively concentrated, and the surrounding buildings are mostly low-rise buildings such as industrial plants, which have less shelter for the photovoltaic power generation system in the water treatment plant. At the same time, due to the requirements of the building conditions of the water treatment plant itself, the height of each structure and the individual buildings is relatively low and the layout is relatively sparse, and it is not easy to cause occlusion, so it has better lighting conditions. the
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(2) Larger roof area can be installed
Due to the needs of the technological process, water treatment plants often have large buildings and structures, such as bio-reflection tanks, secondary sedimentation tanks, blower rooms, etc. There is a large space for photovoltaic system installation above these structures. In addition, the photovoltaic power generation system of the water treatment plant is mostly a roof-type distributed photovoltaic system, which does not involve additional land, does not change land use, does not affect the requirements for cultural relics protection, does not increase the building area and does not change the building structure. the
(3) Improve the effect of process treatment
The reasonable layout and design of the photovoltaic power generation system in the water treatment plant can reduce the evaporation of pool water, increase the water treatment capacity, and reduce the impact of sewage evaporation on the environment. At the same time, it can also reduce the wind speed above the pool, improve the local small environment, and improve The temperature of the pool water can enhance the growth activity of microorganisms, improve the sewage treatment effect, and finally achieve the purpose of improving the water treatment capacity and the comprehensive economic benefits of the project. the
(4) The electricity consumption of the water treatment plant is large and stable
Water treatment plant loads include high-power loads such as blowers and submersible sewage pumps, as well as low-power loads such as gates, grilles, and submersible flowmakers, and their calculated power is often large. Moreover, due to the relatively balanced water volume, the operation of each process equipment is relatively stable, and the load characteristics are stable, which is convenient for the design of photovoltaic power generation systems. the
(5) Photovoltaic power can be consumed locally
Since the load power consumption of the water treatment plant is large and the change is small, the reasonable design of the photovoltaic system can make full use of photovoltaic power, avoid the waste of power in the photovoltaic system, and reduce the light rejection rate. the
(6) Good financing conditions
Water treatment plants usually have a long operating cycle, guaranteed operation, stable benefits, a high proportion of self-consumption, and a high return on investment, which can avoid the problem of financing difficulties. the
(7) Low maintenance cost After the photovoltaic system is completed, its operating costs are mainly maintenance costs such as cleaning water, in addition to equipment damage caused by irresistible factors. The cleanliness of the effluent or reclaimed water of the sewage treatment plant can meet the cleaning needs of photovoltaic modules. At the same time, the water source after cleaning can be directly collected into the sewage treatment process on the spot, so water can be saved and maintenance costs can be reduced.