This article analyzes the definition, detection principles, interrelationship, and engineering application value of the two core pollution indicators — Chemical Oxygen Demand (COD) and Biochemical Oxygen Demand (BOD) — in wastewater treatment from an engineering and technical perspective. It is suitable for system integration, wastewater treatment process control, and environmental compliance mo···

For system integrators and industrial procurement decision-makers, a deep comparison of BOD determination methods (dilution and inoculation method, microbial sensor method, and dual-wavelength fluorescence method). It analyzes the technical advantages of NiuBoL digital BOD sensors, covering RS485 Modbus RTU protocol integration, automatic turbidity compensation, and online continuous monitoring so···

In-depth analysis of the core causes of COD and ammonia nitrogen spikes in wastewater treatment, providing system integrators with industrial-grade online monitoring and process optimization guidelines. It explores the application of NiuBoL digital water quality sensors in biochemical system early warning, influent shock load monitoring, and effluent compliance, covering RS485 Modbus protocol inte···

NiuBoL NBL-WQ-BOD-4A dual-wavelength fluorescence method online BOD sensor is designed for system integrators, IoT solution providers, and environmental protection engineering contractors. It provides RS-485 Modbus RTU protocol output, supports seamless integration with existing SCADA, PLC, and IoT platforms, and realizes real-time organic load monitoring in laboratory and industrial wastewater tr···

Recently, NiuBoL Technology successfully exported a batch of portable soil temperature and humidity testers to the Philippine market. The equipment has successfully cleared Philippine customs and been delivered to the customer, marking another important breakthrough for NiuBoL in the Southeast Asian agricultural monitoring field.

COD exceedance in the effluent of urban sewage treatment plants is a common challenge in current operation and management. With the revision and advancement of the "Pollutant Discharge Standards for Urban Sewage Treatment Plants", COD discharge limits are becoming stricter. Online precise monitoring and stable compliance have become the focus of industry attention. This article systematically anal···

Water treatment automation instrument solutions for system integrators and engineering companies. Covers online process parameter monitoring, water quality analysis instrument system compatibility, SCADA integration cases, and portable multi-parameter water quality analyzer selection guide. NiuBoL provides full-chain technical support from the sensor layer to the platform layer.

In industrial process control and water treatment projects, online pH meters are core monitoring equipment for achieving precise acid-base balance, ensuring process stability, and meeting discharge standards. This article systematically organizes the application points of online pH meters in typical scenarios such as electroplating, water treatment, sewage treatment, and neutralization reactions f···

Professional industrial online pH meter selection and integration guide, with in-depth analysis of NiuBoL series sensors in industrial wastewater, environmental monitoring, and chemical process applications. This article provides system integrators and project contractors with in-depth analysis of 11 common measurement problems, technical parameter comparisons, and Modbus RTU integration solutions···

Professional interpretation of the four core indicators for wastewater discharge online monitoring (COD, Ammonia Nitrogen, Total Nitrogen, Total Phosphorus) and their monitoring solutions. This article provides environmental protection engineering contractors and system integrators with NiuBoL industrial-grade water quality online analyzers' technical specifications, integration guidelines, and GB···

The online pH meter is a widely used analytical instrument in industrial process control and water quality monitoring fields. It is mainly used to achieve real-time and continuous measurement and automatic control of solution pH value. NiuBoL NBL-WQ-PH online pH meter adopts glass electrode measurement principle, integrates automatic temperature compensation, RS-485 Modbus RTU communication, and s···

This article provides an in-depth analysis of the two mainstream technologies for residual chlorine measurement in water quality monitoring: DPD colorimetric method and constant voltage electrode method. For system integrators and industrial project contractors, it compares and analyzes their measurement principles, advantages, disadvantages, and application scenarios. NiuBoL provides high-perform···

This article provides an in-depth analysis of the natural and anthropogenic sources of chloride in water, clarifying the significance of chloride as a key indicator of water pollution. It also provides industrial-grade chloride ion sensor technical parameters, selection recommendations, and integration solutions for system integrators, project contractors, and engineering companies.

In-depth analysis of the five core methods for ammonia nitrogen determination in water quality monitoring: Nessler's reagent method, salicylic acid method, titration method, gas phase molecular absorption spectrometry, and ion selective electrode method. Providing NiuBoL online ammonia nitrogen sensor integration solutions for B2B system integrators and environmental protection engineering contrac···

The online COD water quality analyzer is an important online analysis instrument in the fields of industrial wastewater treatment, environmental monitoring, and water resource management. It can realize real-time continuous monitoring of chemical oxygen demand (COD) in water. NiuBoL NBL-WQ-COD online COD sensor adopts dual-wavelength ultraviolet absorption method, requires no chemical reagents, si···