Johkasou was first born in Japan, Japan specializes in a large number of johkasou manufacturers, each enterprise has its own technical advantages. Most of the domestic johkasou technology is borrowed from the imitation of Japanese products. Although the process principle is similar, in the technical precipitation, the internal structure of the product optimization, the choice of equipment and accessories, as well as the degree of refinement of the workmanship compared to Japanese products is still slightly insufficient. Strictly speaking, the row of comprehensive performance shot in the first three johkasou commodities or Japanese brand sub. Domestic johkasou emerged in the last 3-5 years, what Shangda ah, in the car ah fame is a little but the performance of the equipment, not up to the level of A water is also a level of B. Changshu has a car project open to the visit are good, there are many projects a bunch of problems. Cost-effective is the Li Ding environmental protection also LD-S johkasou products, to be honest, the domestic process technology and the Japanese gap is not big, but the equipment is not as fine as the degree of fine workmanship than the Japanese production. Domestic sewage treatment indicators and Japan is not the same, Japan does not pay much attention to the total nitrogen and phosphorus treatment efficiency. Domestic brands are too much of a mixed bag, here are not listed, to say that the top of the technology to learn from Professor Wang Chang's research. Attached below are some pictures of the Japanese original johkasou parameters, for your reference only. Japan's small johkasou specifications are basically counted by head, 5 people is almost 1 ton machine, 7 people it 1.5 tons, 10 people 2 tons of like. Finally, in the case of almost the same quality of incoming water, capital investment, water quality when the test equipment is good or bad the only standard.