Field improvement - List of Manufacturers, Suppliers, Companies and Products

Improvement of wastewater treatment facility at cut vegetable factory for stable processing and sludge reduction.

The first case that proved it is possible to discharge into rivers without using activated sludge!

A new Aiens Innovative System (AIS) has been established at a cut vegetable factory with a daily drainage capacity of 300m³. The processing flow consists of an adjustment tank ⇒ 7 AIS tanks ⇒ a sedimentation tank ⇒ river discharge. By returning the sludge from the sedimentation tank to the adjustment tank, the amount of sludge generated is minimized, and despite inflows exceeding the designed load, the water quality analysis results show that all parameters meet the standard values. In a separate factory, issues related to odors have arisen, and the introduction of AIS is also being considered there. This is the first case that has proven the ability to discharge into rivers without using activated sludge.

Company：アイエンス
Price：Other

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[Processing stability, removal of pressurized flotation devices, etc.] Improvement of wastewater treatment facility at chicken meat primary processing plant.

Change the existing aeration device of the treatment tank to an Aqua Blaster to enhance processing capacity, allowing treatment to be conducted without the use of a pressurized flotation device.

Due to the increase in wastewater volume associated with the factory expansion, the aeration device of the existing treatment tank was changed to an Aqua Blaster to enhance processing capacity. By installing Aqua Blasters in the adjustment tank and aeration tank, we successfully accepted a load increase of 10-20% without increasing the tank size. Furthermore, it has become possible to carry out treatment without using a pressurized flotation device.

Company：アイエンス
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Improvement of wastewater treatment plant at dressing manufacturing factory for processing stability and sludge reduction.

The pH automatically increased without using a neutralizing agent, and the adjustment tank alone cut the load by over 70%.

As shown in the table above, the pH automatically rises without the use of neutralizing agents, and the adjustment tank alone has cut the load by over 70%. Of course, it has also eliminated any foul odors. Later, a load more than three times higher flowed in, yet the adjustment tank alone managed to cut BOD by 50% and normal hexane extractable substances by 60%. The person in charge later emailed me, saying, "The concentration of raw water flowing in is far higher than the values we had heard, and it is remarkable that we are able to handle this load." (Quoted as is)

Company：アイエンス
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Improvement of wastewater treatment facility at the deli factory for processing stability, reduction of electricity costs, and sludge volume reduction.

After returning sludge from the sedimentation tank to the adjustment tank, surplus sludge (approximately 5.1 tons/month) was no longer generated, and electricity costs were reduced by about 10%.

To address neighborhood concerns, 63 units of the Aqua Blaster AS-250 were installed to remove unpleasant odors such as hydrogen sulfide generated from the adjustment tank. After installation, when sludge was returned from the sedimentation tank to the adjustment tank, surplus sludge (approximately 5.1 tons/month) ceased to occur, and electricity costs were reduced by about 10%. The person in charge mentioned, "The fact that we no longer need to manage the dewatering machine has greatly helped us, as the measurement work now only takes about 2 hours a day, reducing the work time to one-sixth." The BOD cut rate in the adjustment tank is an average of 38.9% during high-load wastewater inflow and 61.4% during normal times, which has reduced the load on the subsequent aeration tank.

Company：アイエンス
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Improvement of wastewater treatment facility at egg processing plant for stable processing, reduction of electricity costs, and reduction of unpleasant odors.

As a result of switching to the Aqua Blaster, BOD was reduced by over 30% on a weighted average! Poor sedimentation has been resolved, allowing for stable discharge without the need for chemical dosing.

To prevent foul odors and enhance processing capacity in the adjustment tank, the existing aeration device was replaced with an Aqua Blaster, resulting in a reduction of BOD by over 30% based on the weighted average. Additionally, previously, chemical dosing was performed due to poor sedimentation in the final settling tank, but since the sedimentation issues have been resolved, stable discharge can now be achieved without chemical dosing. Notably, customers are very satisfied that even during increased production or incidents of sudden inflow of high-concentration wastewater, the system can handle it without any issues. This has led to the special adoption of pre-treatment in related factories.

Company：アイエンス
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Improvement of wastewater treatment plant in chemical factory: [processing stability, reduction of electricity costs, sludge volume reduction, etc.]

There were issues with treatment due to the aeration from the mixer and disk-type diffuser, but by introducing the Aqua Blaster, it became possible to completely stop the mixer!

In this factory, aeration was being performed using a stirrer, but due to a lack of dissolved oxygen (DO), aeration was also being conducted simultaneously with a disc-type diffuser. However, due to ongoing treatment failures, the existing blower was utilized to change the aeration device to the Aqua Blaster AL-750, which allowed for successful treatment, leading to the complete shutdown of the 55W stirrer to this day. Subsequently, the amount of sludge generated per unit of production was reduced, resulting in repeat orders for other wastewater series tanks. ★ Sludge reduction rate per unit of production → 18.8% reduction ★ Conventional stirring device 55Kw → Completely stopped

Company：アイエンス
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Improvement of wastewater treatment facilities at food complexes for processing stability and reduction of electricity costs.

The removal rate of BOD is 80%, and the removal rate of normal hexane extractable substances is 82%, showing significant improvement! Even after more than 8 and a half years, it maintains a no-maintenance state.

Before the installation of the Aqua Blaster, a large amount of oil and grease scum accumulated in just one day, leading to the formation of oil balls. Hydrogen sulfide was generated to the extent that it corroded surrounding equipment. The oil balls on the water surface and those that sank to the bottom were regularly manually retrieved and disposed of as industrial waste. As a result of installing the Aqua Blaster, the BOD removal rate improved significantly to 80%, and the removal rate of n-hexane extractable substances improved to 82%. Even after more than eight and a half years, there has been no need for removal or dredging work, and a no-maintenance state has continued. The dramatic improvement in water quality has led to waterfowl visiting the sedimentation tank every year without fail. Below are the results from the installation in 2012 to 2020 over eight years: - With a 6-hour retention time in the adjustment tank, BOD and n-hex were cut by over 80%. - The floating oil and grease and settled sludge that had been generated in the adjustment tank have not been removed even once in eight years. - Hydrogen sulfide levels decreased from 100 ppm to 0 ppm. - At the outlet of aeration tank 1, the Setouchi regulations are being met. - The sludge conversion rate for BOD was reduced from 35% to 25%. - The sedimentation tank has remained stable, attracting ducks. - Excess sludge has drastically decreased, and the odor from its steam drying is no longer a concern.

Company：アイエンス
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[Processing stability, electricity cost reduction, etc.] Central kitchen wastewater treatment facility improvement

"It is a dream-like wastewater treatment system." We received this evaluation and have received a repeat order for the wastewater treatment equipment for the new factory.

Despite reducing the 400t water tank to 200t and switching from river discharge to sewage discharge, we successfully achieved an annual cost reduction of 15 million yen. Additionally, while 2.5 workers were previously required, after installation, only the removal of screened sludge was necessary. Furthermore, since the BOD and SS regulatory values in this area were below 600 mg/L, there were times when treatment was excessive, allowing us to stop the nighttime blower. As a result, we received the evaluation that it was "a dream-like wastewater treatment system," and the wastewater treatment equipment for the new factory was awarded a special order for the "Iens Innovative System."

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Improvement of wastewater treatment plant at tofu factory for processing stability and reduction of electricity costs.

By changing the aeration pipes of all tanks from the adjustment tank to the aeration tank to Aqua Blasters, we achieved stabilization of the sedimentation tank even under sustained high temperatures exceeding 35°C!

At a tofu and soy milk factory in Shizuoka Prefecture, simply changing the aeration device in the first aeration tank from a membrane type to an Aqua Blaster resulted in a 39% reduction in sludge, leading to the shutdown of one blower. As a result, at this factory in Tokushima, the aeration devices in all water tanks, from the adjustment tank to the aeration tanks, were changed to Aqua Blasters. Completed at the end of July, despite several days exceeding 35°C, the system remained stable and was able to maintain the sedimentation tank in the condition shown in the photo. At this site, they also succeeded in reducing the inverter frequency of the auxiliary blower to 25Hz. It is planned that this blower will eventually be shut down as well.

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Improvement of wastewater treatment facilities in processed food factories for stable processing, sludge and chemical volume reduction, etc.

We have eliminated the collection of floating oil and successfully reduced the final sludge of activated sludge treatment.

The work to eliminate the foul odor from the adjustment tank and the recovery of floating oils has been completed, and the Aqua Blaster AS-250 has been installed to improve processing capacity. As a result, although hydrogen sulfide had been accumulating and causing processing issues, the foul odor has disappeared, and the wastewater is no longer acidic, leading to a significant reduction in the amount of chemicals used. Furthermore, the manual collection of floating oils, which had been done three times a week, has ceased, along with the generation of 36 tons of floating sludge. Additionally, the final sludge from the subsequent activated sludge treatment has been reduced from 200 tons to 170 tons, representing a 15% reduction in volume.

Company：アイエンス
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Improvement of wastewater treatment facility at instant noodle manufacturing plant for processing stability and odor reduction.

As a result of changing the existing aeration device in the adjustment tank to an Aqua Blaster and enhancing processing capacity, we achieved a reduction in normal hexane extractables and sludge!

To enhance the processing capacity of the oil and fat content, the existing aeration device in the adjustment tank was changed to an Aqua Blaster, resulting in an increase in processing capacity. As a result, the amount of normal hexane extractables was reduced by over 50% after passing through the adjustment tank, and other items similarly decreased, leading to a halving of the sludge generated during pressurized flotation. Previously, the pH on the inflow side tended to be acidic, requiring chemical neutralization; however, now, due to the effect of the Aqua Blaster, it has automatically become neutral, eliminating the need for neutralizing agents. Additionally, the dissolved oxygen (DO) level at the outlet of the adjustment tank has consistently been maintained at over 2.0 mg/L, resolving issues with sedimentation in the final settling tank, and the odor of dewatered sludge has changed from anaerobic to aerobic.

Company：アイエンス
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Improvement of wastewater treatment facility at milk and dairy product factory for processing stability and reduction of electricity costs.

After the delivery of the Aqua Blaster, despite the removal of the sprinkler floor, the coagulant became unnecessary, and the river discharge standard values were also achieved!

Due to the occurrence of processing issues, we decided to abandon the existing sprinkler bed and removed it, installing the Aqua Blaster AL-750 in the aeration tank. Until now, we had no choice but to use coagulants after passing through the sprinkler bed, but after the installation of the Aqua Blaster, we no longer needed coagulants even after removing the sprinkler bed. Additionally, since the treatment became very stable, we successfully included the high-concentration yogurt wastewater, which had previously been disposed of, in the effluent treatment, leading to a reduction in industrial waste costs. The recent analysis of the discharged water showed BOD at 9.4 mg/L, n-Hex was not detected, and other parameters also met the river discharge standards without any issues.

Company：アイエンス
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Improvement of hotel kitchen wastewater treatment facility for processing stability and reduction of electricity costs.

Successfully introduced the prototype of the Aqua Blaster and cleared the release standard values!

High concentrations of hydrogen sulfide were generated from the wastewater treatment facility of a renowned hotel, established by a major general contractor, exceeding the discharge standards. However, by installing a prototype of the Aqua Blaster, the hydrogen sulfide levels were reduced to 0.0 ppm, successfully clearing the discharge standards without using a pressurized flotation device. This led to a ripple effect in other top-tier hotels, and with funding from Hyogo Prefecture, it became the foundation of the current technology of Iens, as a "wastewater treatment facility without sludge treatment" (processing SS below discharge standards).

Company：アイエンス
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Improvement of wastewater treatment facility at a prepared foods factory for processing stability, sludge reduction, and chemical reduction, etc.

The load reduction rate with conventional carrier processing was 24.2%, while the Aqua Blaster achieved a reduction rate of 39.1%. This resulted in a performance difference of 1.24 times!

Since it was a parallel two-system processing, to confirm the performance of the Aqua Blaster, all the biological carriers from one of the towers were removed, and the Aqua Blaster was installed with the same air volume. Upon checking the processing efficiency, the load reduction rate for the conventional carrier processing was 24.2%, while the tank with the Aqua Blaster achieved a reduction rate of 39.1%. As a result, the overall load changed from 2,960 mg/L to 2,380 mg/L, resulting in a "1.24 times capacity difference." Even without the supported carriers, the performance was demonstrated, and it was naturally installed in the remaining tower, leading to the decision to remove carriers in other factories as well and implement the Aqua Blaster.

Company：アイエンス
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