[
  {
    "DataSN": "8982472",
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    "Source": "https://english.sso.gov.taipei/News_Content.aspx?n=98EC215A98B31FAA&s=C1CC309E6787B5BB",
    "title": "Dihua Sewage Treatment Plant History",
    "Content": "Project Scheduling:In order to comply with the more restricted effluent standards announced in 1998.1.1 by the Environmental Protection Agency, Executive Yuan, the Dihua Sewage Treatment Plant History stopped operations in 1998.4.7 for upgrading to a Class-2 process, the upgrading project mainly comprised of civil works, treatment systems and landscaping. The entire project was completed in November 2006 and formal operations started in February 2007. Sludge reducing equipment was completed in 2014.Treatment Method:Sewage is treated by deep chamber staged aeration Class-2 biological treatment followed by disinfection before discharging into the Tamsui River; sludge is treated by thickening, anaerobic digestion and dehydration and then hauled by an entrusted legal removal service provider to the EPD’s incinerator in Taipei City for incineration.Design Capacity and Design Quality:Design Capacity: Daily Average sewage treatment 500,000CMDDesign Quality:Intake Sewage: BOD5 = 180mg/L, SS = 180mg/L;Effluent Quality: BOD5≦20mg/L, SS≦20mg/L.Recycled Water for re-use: Design capacity: 10,000CMDFlowchart Overview:After entering the Dihua Sewage Treatment Plant, large solids in the diverted sewage are first removed by a Fine Bar Screen, most precipitable suspended solids are then removed by a Primary Clarifier. Effluent from the Primary Clarifier then enters the aeration chamber and secondary clarifier for removing organics. Sodium hypochlorite is finally added to remove germs and effluent before it is discharged into Tamsui River. A 10,000CMD portion of the effluent is further treated by sand filter for recycled use.As for the manure, together with thickened sludges from primary and secondary clarifiers, it is treated by anaerobic digestion and dehydration to from sludge cakes. The cakes will be further used for multiple purposes after completion of the plant’s sludge reduction project, such as for incineration, brick making, road foundation material, cement additive, etc.Gas produced in the Anaerobic Digest Chamber is recycled for re-use; in addition to being used for stirring the digest chamber itself and fueling the boiler for maintaining temperature of the chamber, the rest is used as heating energy for the sludge dryer system.Project Features: The plant’s main treatment unit is a 210m x 250m installation in a 17m depth under the ground, daily capacity 500,000CMD, the biggest Class-2 sewage treatment facility in Taiwan.The main unit includes: intake preliminary treatment, primary clarifier, deep-trough aerator, secondary clarifier, disinfection chamber, and effluent pumping station. All of them are enclosed semi-underground structures. Additional facilities include a deodorizing system and noise insulation for minimizing negative effects to the surroundings.Both the primary and secondary clarifiers adopt a double layer design which is first seen in Taiwan, enabling higher treatment capacity in a limited floor area. Additionally, the biotreatment of deep trough staged aerator is also the initial application in Taiwan; besides general biotreatment, it also provides nitrogen removal.The plant is equipped with Class-3 recycling facility (automatic backwash sand filter) for supplying water for washdowns and irrigation use within the plant and horticulture use of the public.The top area of the main treatment unit has a coverage of 4.6 hectares, i.e., 13,900ping, providing versatile leisure facilities such as children’s playground, skating rink, lawn activity area, basketball court, tennis court, softball field, parking lot and public arts for public use.Substantial Benefits:After its upgrading to a Class-2 plant, the Dihua Sewage Treatment Plant not only improved its effluent quality that meets stricter effluent standards, but also significantly lowered the risks of the enlarge system. Furthermore, the integral design made optimum use of the land: a 500,000CMD sewage treatment plant is built on the original land, a nearly 100% increase to the original capacity, plus with a leisure park installation on the top, providing facilities for leisure activities for the citizens.",
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    "Publish Department": "Department of Information Technology, Taipei City Government"
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  {
    "DataSN": "8982469",
    "ArticleType": "0",
    "FileName": "",
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    "Source": "https://english.sso.gov.taipei/News_Content.aspx?n=98EC215A98B31FAA&s=9CC80314BD7D3191",
    "title": "Dihua Sewage Treatment Plant Introduction",
    "Content": "Being the largest Class-2 sewage treatment plant in Taiwan, the operations of the Dihua Sewage Treatment Plant started in 2006 on its completion. Daily capacity can be as high as 500,000CMD; and after its commencement, the water quality of the Tamsui River has turned from medium to low polluted from the original heavily polluted.The Dihua Sewage Treatment Plant employs a double-layer clarifier design (which is the first in Taiwan) and a deep chamber staged aeration Class-2 biological treatment procedure; a semi-underground design concept is used for the entire plant for preventing dispersion of odors generated by sewage treatment; and an additional Class-3 recycling facility is installed for supplying water to in-plant facilities and toilets as well as to the public for plant irrigation use, street washdowns, and so on.Plant address: No. 235, Jiuquan Street, Datong District, Taipei CityTel: (02) 2596-9616Fax. (02) 2596-4463Sewage Treatment Procedures:Dihua Sewage Treatment Plant Main Treatment Facilities ListItemFacility NameQuantityBrief Description 1  Control Center Building  1 4 levels above ground, L 90m, W 27m, H 20m 2  Mechanical Fine Bar Screen  5 Rotation type, W 2.0m, H 3.5m, pitch 6mm 3  Primary Clarifier  12 2-layer structure (upper layer L 24.25m, Lower layer L 32m), W 5.8m, both layers D 3m/ Metal Chain 4  Deep Aerator  6 Deep chamber staged aerator, L 63.3m, W 27m, D 10m, 3-stage anaerobic zoning (fungi selection) and 3-stage zoning, stirred with aerator; additional degas chamber, L 27m, W 4.5m, D 5.35m 5  Secondary Clarifier  24 2-layer structure (upper layer L 37.35m, Lower layer L 40.35m), W 6m, both layers D 5m/ Metal Chain 6  Disinfector  2 Add sodium hypochlorite for disinfection; each L 48.02m, W 11.55, average D 8.0m 7  Effluent Pump  4 Vertical centrifugal pump (500HP), Wet Well L 90m, W 27m, above ground H 20m 8  Solid Treatment Building  1 4 levels above ground, L 55m, W 28m, H 24m 9  Sludge Thickener  8 4 levels above ground, L 55m, W 28m, H 24m 10  Sludge Dehydrator  8 Belt filter, Belt W 2~2.5m 11  Anaerobic Digester  3 Round structure, Dia. 37.5m, average rim depth 10.5m 12  Digest Gas Tank  1 Blader type, Dia. 24.0m, Rim height 10.5m 13  Maintenance Room  1 L 37.5m, W 22.3m, H 16.5m 14  Deodorization Machine Room  1 3 levels above ground, L 33.4m, W 26.3m, H 11.0m 15  Main Sub-station  1 3 levels above ground, L 43.2m, W 17.05m, H 18.53m 16  Sludge Dryer  2 Total sludge treatment=140 t/day, water content in dried sludge<10%Environment Education CoursesAddress of Dihua Sewage Treatment Plant: No. 235, Jiuquan Street, Datong District, Taipei City. Certified as an “Environment Education Facility” on March 25th 2004 by EPA, the very first urban sewage education locality in Taiwan.“Water Protection, Culture and Industry” are 3 aspects of environmental education courses promoted by the Dihua Sewage Treatment Plant addressing different groups: primary school students, junior-high students, and the general public (including high school students); courses include contents regarding sewage treatment education: “New Dress for Sewage Baby” and “Knowing Sewage Treatment System;” “Tales of Water Babies,” “The encounter between Nature and Culture” that link with the local culture and public arts; legacy carved in Taipei residents’ hearts – Tamsui River anecdote that accompanied their growth are also included in “The place we grew up,” “Water Stories of Taipei;” together with some hands-on activities, the course becomes more colorful and vivid. Each 2-hour course may accommodate 25 people. Reservation is open 9:00-17:00 on normal days (Monday through Friday). On-line reservation is prioritized for citizens and entities. Website: https://service.gov.taipei/rental/VenueDetail/e1fabfea2753. People may query for detains via Fax: 2596-4463, letter, or telephone (02-25973183 extension 871). Courses are introduced as follows:(I) [New Dress for Sewage Baby] and [Knowing Sewage Treatment]: Sewage treatment is an unfamiliar realm to the general audience; via visitation to a sewage treatment plant participants may learn how does sewage come about and why a sewage treatment plant is necessary for treating domestic sewage so that impact to the environment can be minimized; they may also realize only via water conservation and re-use of recycled water can we achieve sustained operations of water resources.Furthermore, games that combine with process activities, pH value test and sludge sedimentation test (SV30) may also enable participants to have preliminary understanding in sewage treatment technologies; via observing the treated wastewater, one may also realize the importance of sewage treatment plants.Sludge Sedimentation (SV30) TestpH TestToilet paper and other paper dissolution test(II) [Tales of Water Babies] and [The encounter between Nature and Culture] This course aims to give an understanding of coexistence of human and environment via public arts at the Dihua Sewage Treatment Plant and to learn to appreciate man-made beauties; by introducing “The Esthetics of Contacts,” “Hearing the Water” and “Ground Revelation,” students may understand the origin of sewage and the process for its treatment and return to the nature.Explaining river pollution indices and comparing past and current pollution conditions of the Tamsui River by actually visiting the waterfront and the effluent location, students are enabled to understand the necessity of a sewage treatment plant.Public Art – The beauty of contactsWater Circulation Flowchart(III) [The place we grew up] and [Water Stories of Taipei]This course aims to enable students to further understand the sewage life cycle; props like toilet, piping and septic tanks are used for interpreting improvements in sewerage systems. Hands-on activities in [Knowing Sewage Treatment System] allow students understand the process of sewage collection in systems near their home vicinities. By viewing a video of sewage treatment plant and model explanations, students can finally understand by oral guidance the relationship between sewage and the environment, and the pros and cons for the existence of sewage treatment plants.History of sewage piping systemsWe eagerly expect schools, groups and communities cooperate with the Dihua Sewage Treatment Plant for promoting environmental education relevant activities and participating in the planning of courses to combine local water resources with historical and cultural resources as well as communities, schools and institutions for jointly developing environment education courses.Carbon Footprint Emblem The Dihua Sewage Treatment Plan was certified with the EPA Carbon Footprint Emblem on 2019.12.24, manifesting its endeavors for environment protection and carbon reduction; the next goal will be set on a Carbon Reduction Emblem.",
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        "title": "Water Circulation Flowchart",
        "url": "https://www-ws.gov.taipei/001/Upload/351/relpic/17524/8982469/27442145-aeaa-4580-959d-48caa201ba66.jpg"
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      {
        "title": "History of sewage piping systems",
        "url": "https://www-ws.gov.taipei/001/Upload/351/relpic/17524/8982469/34c73779-2600-462d-97fb-56897ff981dd.jpg"
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      {
        "title": "Public Art – The beauty of contacts",
        "url": "https://www-ws.gov.taipei/001/Upload/351/relpic/17524/8982469/f567f9d1-317b-4914-aea7-1b13278cb301.jpg"
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      {
        "title": "Toilet paper and other paper dissolution test",
        "url": "https://www-ws.gov.taipei/001/Upload/351/relpic/17524/8982469/89d06c4c-f915-4e08-9b78-59821b3964e0.jpg"
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      {
        "title": "Dihua Sewage Treatment Flowchart",
        "url": "https://www-ws.gov.taipei/001/Upload/351/relpic/17524/8982469/4e9a3876-c989-4a4f-bf44-841780baeb89.png"
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      {
        "title": "Dihua Sewage pic",
        "url": "https://www-ws.gov.taipei/001/Upload/351/relpic/17524/8982469/9b2d67dd-754c-4438-81e6-bd77f006d3d4.jpg"
      },
      {
        "title": "pH Test",
        "url": "https://www-ws.gov.taipei/001/Upload/351/relpic/17524/8982469/283fd34b-a4b7-4f27-8928-2d91f58e5f03.jpg"
      },
      {
        "title": "Sludge Sedimentation (SV30) Test",
        "url": "https://www-ws.gov.taipei/001/Upload/351/relpic/17524/8982469/9df2dc0b-afa1-4458-a615-3b07d4a7030e.jpg"
      },
      {
        "title": "Dihua Sewage Treatment Procedures",
        "url": "https://www-ws.gov.taipei/001/Upload/351/relpic/17524/8982469/78c38b92-586e-4eab-aa21-557c2738bc98.png"
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        "title": "Dihua Sewage Treatment Procedures1150327",
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    "Publish Department": "Department of Information Technology, Taipei City Government"
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  {
    "DataSN": "8982467",
    "ArticleType": "0",
    "FileName": "",
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    "Source": "https://english.sso.gov.taipei/News_Content.aspx?n=98EC215A98B31FAA&s=C21FDF5DC79E9BB3",
    "title": "Neihu Sewage Treatment Plant History",
    "Content": "Project Scheduling: Construction of Neihu Sewage Treatment Plant mainly includes civil work, treatment system and landscaping; where the main construction started on February 13, 1998. The Design Volume of Phase-1 sewage treatment was 150,000CMD. The Sewerage Systems Office itself started its operation after the successful acceptance inspection on July 22, 2004. The Design Volume of Phase-2 sewage treatment was 240,000CMD; the expansion was completed for operations in 2016. The operations, maintenance and management of the plant was outsourced since July 1, 2020,Process Method:The original design of the Class-2 treatment unit is of the VIP Method, which is capable of effective removal of nitrogen and phosphorus; currently we have changed active sludge treatment unit into step-type VIP method. The Class-2 treated water is discharged into the Keelung River after sodium hypochlorite disinfection, a portion of the treated water undergoes circulation of mechanical filtration and Ultrafiltration (UF) for recycled use.Design Capacity and Quality:Design Intake Flow: 240,000CMDDesign Intake Quality:BOD₅: 185mg/L ,SS: 190mg/LEffluent quality:BOD₅≤30mg/L、SS≤30mg/LRecycled Water:Design Capacity: 20,000CMD，Ultrafiltration (UF) System: 200CMD Design CapacityProcedure Overview:After entering the plant, the sewage passes through a Bar Screen and Sedimentation Pool for removing debris, sand and gravel from the water protecting pumps; it then enters the Primary Clarifier for removing part of organic substances and most suspended solids from the water.The supernatant from the Primary Clarifier then enters the Class-2 Biotreatment Unit (in Stepped VIP) and then the Secondary Clarifier, for sedimentation; after that, the treated water is disinfected with sodium hypochlorite to remove germs and becomes the effluent before being discharged into the Keelung River.Effluent from the Class-2 biotreatment is disinfected with sodium hypochlorite; part of it is filtered by automatic filters and the Ultra-Filtration System for recycled use in the plant, as well as for external use, for maximum recycling .Starting from 2007, scum and sludge separated from the primary and secondary clarifiers have been incorporated into the process of the Dihua Sewage Treatment Plant via a dedicated pipeline and sieve dregs are hauled to incinerators for incineration.In order to prevent odors of hydrogen sulfide and ammonia from affecting operators in the plant and causing air quality and environmental issues to nearby residents, the exhaust gas is collected with ducts and treated by wet chemical cleansing and odor removal facilities before being released into the atmosphere, thereby complying with air quality requirements of the environment.Engineering Features:The Neihu Plant is the first semi-underground sewage treatment plant in Taiwan designed using a concept of a totally covered configuration that can prevent odors produced by treatment facilities from escaping and dispersing.The superstructure of the plant, an area of 3.8 hectare, is programmed as a sports park equipped with pools, PU tracks, extreme sport facilities, rock climbing field, children’s playground, and even models of the sewage treatment plant for demonstrating its procedures, which may benefit leisure activities of citizens and emphasize environmental education for the public.Suggestions are made for using recycled water for flushing the toilet, for cleaning public environments, for irrigating plantations and maintaining landscaping, for washing large vehicles, for sprinkling roads to eliminate flying dust, thereby setting examples in re-using the recycled water.Substantial Benefits:Ever since the completion and start of its operations, the project has not only alleviated the load of centralized treatment for the sewerage systems in Taipei City but also functioned to supplement the flow of the Keelung River for increasing its self-cleaning capability and volume accommodating capacity.",
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    "Publish Department": "Department of Information Technology, Taipei City Government"
  },
  {
    "DataSN": "8982465",
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    "Source": "https://english.sso.gov.taipei/News_Content.aspx?n=98EC215A98B31FAA&s=7F5A03670D7AB7D9",
    "title": "Neihu Sewage Treatment Plant Introduction",
    "Content": "The construction of the Neihu Sewage Treatment Plant started in February 1998. After completion and successful function test in May 2003, the plant entered formal service and operations in 2004. The design capacity of Phase-1 construction was 150,000CMD; after completion of the Phase-2 construction in 2016, the design capacity increased to 240,000CMD.It mainly functions for handling the sewage of Neihu and Dazhi areas and part of New Taipei City’s Xizhi area, and for regulating sewage flow of the Xizhi-Nangang Trunk; via the cross Keelung River connection pipeline, it also exerts an interactive flow regulation with the Dihua Plant by sending sludge to Dihua Plant for centralized treatment and for lowering the cost.The Neihu Plant adopts Class-2 Biotreatment, where treated water is discharged into the Keelung River after sodium hypochlorite disinfection; part of treated water is recycled for re-use after passing through a mechanical filter system and Ultrafiltration (UF) system, used for washdown and irrigation within the plant as well as for civilian plantations and street washdowns.A sports park of 3.8 hectare area is established, facilities include public arts, water pools, rock climbing field, extreme sports setup, etc.Plant Address: No.2, Jiuzong Road Sec. 2, Neihu District, Taipei CityTel: (02)87919494Fax: (02)87919746Sewage Treatment FlowchartAfter entering the plant, the sewage passes through a Bar Screen and Sedimentation Pool for removing debris, sand and gravel from the water protecting pumps; it then enters the Primary Clarifier for removing part of organic substances and most suspended solids from the water.The supernatant from the Primary Clarifier then enters the Class-2 Biotreatment Unit (in Stepped VIP) and then the Secondary Clarifier, for sedimentation; after that, the treated water is disinfected with sodium hypochlorite to remove germs and becomes the effluent before being discharged into the Keelung River.Effluent from the Class-2 biotreatment is disinfected with sodium hypochlorite; part of it is filtered by automatic filters and the Ultra-Filtration System for recycled use in the plant, as well as for external use, for maximum recycling .Starting from 2007, sludge separated from the primary and secondary clarifiers have been incorporated into the process of the Dihua Sewage Treatment Plant via a dedicated pipeline and sieve dregs are hauled to incinerators for incineration. In order to prevent odors of hydrogen sulfide and ammonia from affecting operators in the plant and causing air quality and environmental issues to nearby residents, the exhaust gas is collected with ducts and treated by wet chemical cleansing and odor removal facilities before being released into the atmosphere, thereby complying with air quality requirements of the environment.Facility FloorplanMain Treatment Facilities ListItemFacility NameQuantityDescription 1  ADM Building  1 L 52m, W 25m, above ground H 14m3 levels above ground, 1 level underground 2  Mechanical Coarse Bar Screen  4 Horsepower: 5 HPPitch: 50/38 mmChannel Width: 2.2 mVoltage: 3-ph, 380 V, 60 HzType: Rack-type and rotary type bar 3  Intake Pump  5 Horsepower: 500 HP (350 kW)Lift: 18.5 MFlow Rate: 83.4 M3/minRotation Speed: 710 RPMVoltage: 3-ph, 6.9 KV, 60 Hz 4  Bypass Pump  2 Horsepower: 500 HP (350 kW)Lift: 18.5 MFlow Rate: 83.4 M3/minRotation Speed: 710 RPMVoltage: 3-ph /6.9 KV /60 Hz 5  Mechanical Fine Bar Screen  5 Horsepower: 5 HPPitch: 6 mmChannel Width: 2.2 mVoltage: 3-ph /380 V/60 HzType: Rotational self-clean bar type 6  Primary Clarifier  8 Pool Size: L 56m, W 11.5m, D 4mOverflow Rate: 47.6CMD/㎡Each pool has longitudinal chain scraper and scum collection device 7  Centrifugal Blower  8 Horsepower: 600 HP（450 kW）Rated air flow: 270 m3/minRated pressure: 765 mbarRotation Speed: 3550 RPMVoltage: 3-ph/6.9 KV/60 Hz 8  Roots Blower  3 Horsepower: 150HPRated air flow: 70 m3/minRated Pressure: 0.6 kg/cm2Rotation Speed: 1450 RPMVoltage: 3-ph/ 380 V/60 Hz 9  Bioreactor  12 Pool size: L 58m, W 6m, D 6.5mStep VIP method is usedHydraulic retention time 5.7h 10  Secondary Clarifier  16 Pool Size: L 50m, W 11.5m, D 5m.Overflow Rate: 33 CMD/㎡Solid load rate: 3.9 kg/㎡/hEach pool has longitudinal chain scraper and scum collection device 11  Chlorination Disinfector  2 Contact Chamber Canal: L 120m, W 3.5m, D4mContact chamber canal: L 120m, W 3.5m, D4mDosing Tank: RC tank x3, 8m×4m×3.5mHydraulic Retention time: 0.8min (mixing tank), 30min(Contact Chamber Canal)Dosing Tank Capacity: 120m3 12  Effluent Pumping Station  1 Wet Well L 14.5m, W 14.2m, D 4.7mPump x4, 120,000CMD eachGate x3, moisture-proof tongue valve 13  Effluent Pump  4 Horsepower: 350 HPLift: 11.7 MFlow Rate: 83.4 M3/minRotation Speed: ≦1200 RPMVoltage: 3-ph/6.9KV/60Hz 14  Recycle Pumping Station  1 Wet Well L 20.8m, W 20.5m, D 6mPump x5, 2,000CMD eachAutomatic Filter x2 15  UF System  2 Design Flow: 100 CMDPore Dia.: 0.04 uMVoltage: 3-ph/380 V/60 Hz 16  Sludge Thickener  3 Each with belt-filter concentrator, belt width 2mOperating Method: Continuous 16h/dConcentrate Sludge: SS content≧50,000mg/LSolid Capture Rate: ≧95% 17  Sludge Dehydrator  3 Each with belt-filter concentrator, belt width 2mOperating Method: Continuous 16h/dDehydrated sludge cake: SS content ≧200,000mg/LSolid Capture Rate: ≧95% 18  Deodorizing Chamber  2 Deodorization Chamber (I): L 26.3m, W 18.3m, H 18.6mRemove all the organic and inorganic odor produced in the plant area2-stage horizontal cross-flow scrubber x2 19  Sub-station and Power Generator Room  1 L 40.8m, W 24.7mDiesel Generator x4For providing emergency power and lighting in the plant areaDiesel Generator in parallel connection, (1500kW 6.9kV 60Hz)Carbon Footprint LabelNeihu Sewage Treatment Plant obtained a Product Carbon Footprint Label Certificate issued by Environmental Protection Administration, Executive Yuan on February 24, 2023, carbon emission is 280g CO2e/m3, manifesting the endeavors made for protecting the environment and reducing carbon emission, with an overall expectation to achieve the goal of 10% carbon reduction within the 5-year life span of sewage treatment.",
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    "Publish Department": "Department of Information Technology, Taipei City Government"
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