Qingyan Environment-Common problem

Q

What is the approximate level of investment and operating costs for the RPIR process?

A

The investment in tons of water is related to the actual situation of each water plant. The RPIR process is equipped with equipment included in the biochemical system, such as aeration discs and agitators, and the operating cost is 2-4 cents/ton lower than that of conventional A2O.

Q

Is the RPIR module only available in a size of 5 * 2.4 * 3.1?

A

If some projects are limited to the area occupancy, we will make a customized size for them, but the width and height are fixed, and the length direction can be adjusted.

Q

Is the construction project of a sewage treatment plant by the seaside replacing the stainless steel module of RPIR with a polymer composite material module? How many years is the lifespan approximately?

A

At present, it has been in operation for 4-5 years and the effluent has been stable and met the standard. The anti-corrosion effect of the RPIR module is still very good, and the advantage of land saving is very obvious. In addition, it is generally no problem to use the RPIR process with a salt content of 2%.

Q

What is your company's cooperation interface as a provider of RPIR technology in the project?

A

For conventional domestic sewage, we provide cooperation in the form of process packages in the project.For example, in the biochemical tank, we can assist the design institute in issuing the drawings of the biochemical tank process package. During the construction phase, we are responsible for the layout design of the reaction sedimentation module, pipelines, and aeration in this part.

Q

Can you introduce a case which could dealing with rivers and lake water ,and reach the surface Class IV water standard?

A

In fact, what we are dealing with is the domestic sewage from the sewage outlet during the period when the pipeline network is not yet built. During rainy periods, overflow pollution causes poor water quality. Its aim is to deal with domestic sewage. We generally apply biofilm technology, such as T-Bic rapid biochemical sewage treatment technology, to low concentration water bodies in rivers and lakes, which has strong impact resistance and very low operating costs.

Q

Is the RPIR process applied in industrial wastewater?

A

We have applications in aquaculture wastewater, food processing wastewater, electroplating, and slaughter wastewater. We mainly replace the A2O process, which is compatible with biochemical degradation processes.

Q

As a technical process package, is the aeration system of RPIR different from conventional A2O?

A

The aeration system of RPIR is the same as that of conventional A2O package. We use circular microporous aeration discs or pipes, but there may be differences in the layout.

Q

What is the applicability of oxygen limiting RPIR technology to ammonia nitrogen wastewater?

A

Generally, the ammonia nitrogen concentration is above 500, with no upper limit.

Q

Could MAAR handle in-situ treatment placed in the river channel? What is the effluent quality? How about the operation and maintenance fees for rural sewage?

A

MAAR is an efficient treatment equipment for the bypass treatment of black and odorous rivers, and the effluent quality depends on the inflow quality. If it is to eliminate black and odorous water bodies, the effluent can reach quasi surface IV. MAAR has a single processing capacity of over 200 tons and can also handle rainwater. The operation and maintenance of this facility is very simple, only the water pump needs to be lifted for one time, and there is no need for aeration. The facilities can be reused, and once a pond is treated, it can be dismantled and used in another place.

Q

Which link in the photovoltaic industry is the main application of oxygen limited RPIR rapid sewage treatment technology?

A

The wastewater from the silane tower has a small amount of water per day, ranging from 100 to several hundred cubic meters, but the ammonia nitrogen concentration is around 3500 mg/L and the COD is around 100 mg/L. This situation is particularly suitable for using oxygen limited RPIR technology.

FAQ