Pollution Alert System (PASS)
A Pollution Alert System (PASS) can be implemented as a chain of information communication systems and comprises sensors, event detection and decision subsystems.
They work together to forecast and signal disturbances that adversely affect the stability of the physical world, providing time for the response system to prepare for the adverse event and to minimise its impact.
PASS for Water Treatment Plants Intake
Water analysis instruments are used for data collection to monitor the qualities of river water. Monitor the long-term trends and changes in river water quality is the first step protect operation of the water treatment plants along the river.Continuous online monitoring can provide early warnings to flag filter media changes, chemical dosing, and process adjustments. With data provided by PASS, WTP able to improve efficiency and reduce operational costs.
Besides that, Continuous online monitoring is the key to understanding your intake, and it can lead to smart water management.
Pollution Alert System (PASS) Design
Advantages
PASS is a set of multi-parameter water monitoring sensors and online full spectrum analysers as the core, the use of modern integrated sensing technology and automatic control technology, as well as dedicated data analysis software and communication network composed of automatic water quality monitoring system. It has the following advantages:• Continuous measurement probe-type electrode sensors able provide a fast response time, improve the timeliness of the system's early warning
• Provide a full set of solutions, small size, strong function, less input; suitable for different water bodies of long-term online monitoring system, save land acquisition, save cost for construction of station housing and other related costs.
• The rugged stainless-steel housing and safe anti-theft design for true unattended.
• Classical garden-style design, so that the monitoring system and the surrounding environment highly coordinated.
• High degree of automation, with auto-cleaning function, less maintenance costs and longer stability.
• Large pipe size for the water inlet and drainage system, reduce the risk of blocking the pipe, reduce the failure rate.
• high-quality multi-parameter water quality monitor and online full-spectrum permanganate index analysers; continuous, timely and accurate monitoring of the water quality of the target area.
Basic Measure Parameters
| Parameters | What it indicates |
| pH | Indicates contamination and acidification |
| Dissolved Oxygen (DO) | Measures the amount of oxygen dissolved or carried in the water |
| Turbidity (TU) | Measure cloudiness or haziness of a water caused by large numbers of particles that are generally invisible to the eye |
| Ammoniacal Nitrogen (NH3-N) | Measure for the amount of ammonia, a toxic pollutant |
| Chemical Oxygen Demand (COD) | Indicates the amount of organic pollution in water |
| Oil on Water | Indicates oil on river surface which cannot treat |
| Level and Flow | Understand river physical condition during difference seasons |
| Sampler (alarm sampling) | Any alarm Auto sampler will collect sample for further analysis |
| Optional - Heavy metal analyser | Measure the amount of toxic. depend on the river. Such as F, Cu, Ni, Pb, Mn, Cd, Zn, As, Fe etc. |