There are a lot of brands, and each brand is very unique. You can choose according to your own needs, can not say that one must be better.
With the development of science and technology, the direct utilization of sewage has become possible with the use of sewage source heat pump systems for urban raw sewage.
The so-called raw sewage is the city directly discharged untreated domestic and industrial wastewater, the current stage of the utilization of raw sewage directly into the sewage source heat pump system for heat transfer, in the case of consuming a small amount of electricity for the indoor cooling and heating of urban buildings. Sewage reuse has several technical difficulties to overcome: clogging, corrosion, heat transfer efficiency.
The sewage source heat pump system is composed of two parts: the sewage heat exchanger and the sewage source heat pump. Raw sewage directly into the sewage heat exchanger for heat transfer, the heat exchanged by the sewage source heat pump inside the heat pump work to transfer to the room.
Some of the problems:
1, operation services and efficient supervision, has become a prominent issue. Operation and management is becoming more and more important and prominent. Due to the large number of subordinate enterprises, widely distributed, sewage treatment enterprises also put forward higher requirements for supervision.
2, sewage treatment enterprises in the operation stage, the requirements of the management level, the requirements of cost control is rising.
3, sewage treatment enterprises how to the industry's excellent sewage treatment plant management experience to all plants and stations, while improving the company's overall management level.
Reference: Baidu Encyclopedia - Wastewater Treatment