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  6. Online VFA Analyzer | Hack Japan

Online VFA Analyzer | Hack Japan

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Online VFA Meter EZ7200

last updated:Oct 09, 2024

ハックジャパン
ハックジャパン
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Real-time VFA monitoring device to maximize the efficiency of methane fermentation in anaerobic digestion.

The online VFA meter EZ7200 series is a high-performance online titration device designed for monitoring wet anaerobic digestion tanks. It proposes a new management method for medium to large-scale anaerobic digestion processes. In biomass power generation, industrial wastewater, and sewage treatment, the anaerobic treatment of wastewater and sludge in fermentation tanks involves the breakdown of very complex organic carbon compounds, which presents challenges. Real-time measurement of VFA (volatile fatty acids) is effective for stabilizing the methane fermentation tank in anaerobic treatment. Relying solely on pH measurement and sampling can make it difficult to monitor the conditions inside the fermentation tank, depending on the timing. The ideal pH value inside the fermentation tank is said to be between 6.5 and 7.5, but measuring pH alone is not sufficient; adequate buffering capacity [total alkalinity TAC (also referred to simply as alkalinity)] is necessary to compensate for changes in acid concentration. By continuously monitoring VFA, which are intermediate substances during methane fermentation, it contributes to maintaining a more stable fermentation tank and maximizing gas production. By conducting online measurements at 10-15 minute intervals, it becomes possible to anticipate various events within the digestion tank in advance.

    Water quality testing
VFA-Analyzer.jpg

Online VFA Analyzer | Hack Japan

VFA-Analyzer.jpg
VFA-Analyzer.jpg
  • Related Link - https://hach.jp/product/ez/biogas-vfa/?utm_source=…

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basic information

• Continuous monitoring in the anaerobic digestion process • High operational rate enabling maximum methane gas production • Low detection limit • Monitoring of methane fermentation decline due to VFA accumulation and data transfer functionality • Direct titration method unaffected by carbonates and without volatile fatty acid evaporation • Dedicated pretreatment equipment available

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Applications/Examples of results

Anaerobic digestion system Biogas, etc. ◆Reference Material "Notes on Biomethane Fermentation" https://hach.jp/catalog/544/ (Available for download from our website) ◆Correlation established with the laboratory spectrophotometer DR3900 https://hach.jp/catalog/1012/ (Available for download from our website)

Detailed information

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    Example of installation locations for EZ7200 around the fermentation tank.

catalog(4)

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EZ7250 Series Online VFA Analyzer

EZ7250 Series Online VFA Analyzer

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Biomethane Fermentation Online/Lab Measurement (VFA Meter/Spectrophotometer) Catalog

Biomethane Fermentation Online/Lab Measurement (VFA Meter/Spectrophotometer) Catalog

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[White Paper] Notes on Biomethane Fermentation

[White Paper] Notes on Biomethane Fermentation

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Manufacturing Process Application Note for the Petrochemical Industry | Hack Japan

Manufacturing Process Application Note for the Petrochemical Industry | Hack Japan

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News about this product(8)

In addition to introducing the new hydrogen sulfide sensor, we will provide information on lab analysis of wastewater TOC and VFA measurements, as well as online analysis.

[Webinar] "Introduction to TOC and VFA Measurement in Wastewater, and Hydrogen Sulfide Sensors - Laboratory and Online Analytical Devices" July 10, 2026 (Friday) 11:00 - 11:45

  • Seminar・Event

At wastewater treatment sites, the burden on personnel is increasing due to daily operational management and regulatory compliance, as well as responding to abnormalities and equipment troubles. To address these challenges, it is essential to achieve "visualization" and "automation" to grasp the load in wastewater in real-time and detect anomalies early. In this webinar, we will explain the characteristics and differentiation of lab measurements and online measurements for TOC (Total Organic Carbon) and VFA (Volatile Fatty Acids), which are key indicators of wastewater management. Additionally, we will introduce our new product, the "Hydrogen Sulfide Sensor (GS1440)," which will be released on July 5, 2026, and propose a new approach to ensuring safety, addressing odor issues, and reducing the risk of equipment corrosion. This webinar is recommended for those aiming for stable operations, preventing troubles before they occur, and reducing operational burdens. (Applications from competing companies are not accepted. Registration is not possible with free email addresses.)

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[Webinar] "Measurement of TOC and VFA in Wastewater - Laboratory and Online Analysis Equipment"

[Webinar] "TOC and VFA Measurement of Wastewater - Laboratory and Online Analytical Devices"

  • Seminar・Event

The measurement of TOC (Total Organic Carbon) is conducted in various situations. The management of TOC in factory wastewater is considered one of the important indicators. Additionally, the measurement of VFA (Volatile Fatty Acids) is one of the key indicators that should be monitored for the stable operation of anaerobic digestion processes, such as methane fermentation and biogas power generation. In this webinar, we will discuss the benefits and case studies obtained from measuring TOC and VFA in wastewater treatment processes, as well as explain laboratory and online devices. ■ Agenda - What is TOC? - Purpose of measuring TOC in factory wastewater - Advantages of laboratory measurements and online measurements - What does it mean to measure VFA in anaerobic treatment processes? - Introduction of TOC analyzers (Online TOC analyzer BioTector and laboratory TOC analyzer QP1680) - Introduction of VFA analyzers (Online VFA analyzer EZ7250) ■ Target Audience - Personnel responsible for measuring TOC and VFA in laboratories or manufacturing sites, - Personnel considering measuring TOC and VFA in the future. * Registration with free email addresses is not allowed. * Participation from other companies in the same industry is discouraged.

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(Archive) Benefits and Principles of Online Measurement of VFA (Viewing time: Approximately 33 minutes)

  • Seminar・Event

This is the archive of the webinar conducted in 2022. - Title: "The Benefits and Principles of Online Measurement of VFA - Contributing to the Stable Operation of Anaerobic Digestion and Biogas Plants with the EZ Series and Others" * Please refrain from viewing if you are a competitor. * Registration form information input is required to view. (Registration with a free email address is not allowed) 【Agenda】 - Situations where anaerobic digestion is performed - Control of anaerobic digestion - Online monitoring of fermentation tanks - Methods to resolve "clogs" - Product lineup that supports "onlineization"

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[Notice] I will be speaking at the "Sewage System Startup Challenge" (hosted by the Ministry of Land, Infrastructure, Transport and Tourism).

  • Company news

Our company will be presenting at the "Sewer Startup Challenge" hosted by the Ministry of Land, Infrastructure, Transport and Tourism as part of the Sewerage Exhibition '22 Tokyo on Friday, August 5, 2022. We plan to introduce overseas case studies utilizing our analytical device "Online VFA Meter EZ7200," which contributes to maximizing biogas power generation, a key focus in achieving a decarbonized society. This event aims to promote collaboration and co-creation between sewer-related companies and businesses from different industries. Participation is possible either on-site or online. We hope you will join us. ▼【Overview】"Recruiting Attendees for the 7th Sewer Startup Challenge (August 5, 2022)" https://www.mlit.go.jp/mizukokudo/sewerage/mizukokudo_sewerage_tk_000775.html (Ministry of Land, Infrastructure, Transport and Tourism website) ▼【Details & Registration】"Sewer Startup Challenge" https://www.mri-ra.co.jp/event/2022/06/event20220613.html (Secretariat: M.R.I. Research Associates website)

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Companynews list (24)

Company information

ハックジャパン

ハックジャパン

Testing, Analysis and Measurement

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Hack Japan, as the Japanese subsidiary of Hach Company, is engaged in the sales and service provision of a portion of Hach's product lineup. Since our establishment, we have been providing high-quality analyzers that are highly accurate and easy to use. We continue to uphold the values established by founders Clifford and Kitty Hach when they founded the company in 1947. For over 60 years, we have consistently provided the best solutions for water management and have been trusted by various industries. Our analytical instruments and reagents are used for water quality testing across a range of industrial sectors. Water analysis must be accurate. Hach supports water analysis experts by providing reliable and user-friendly products. 【Main Product Brands】 - Online TOC Analyzer BioTector Series - Various Dissolved Gas Analyzers Orbisphere Series - Online VFA Analyzer EZ7200 - Silica and Sodium Analyzers Polymetron Series - Laboratory TOC Analyzer QbD1200+ - Liquid Spectrophotometer (Color Difference Meter) LICO 620/290

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