Ecological filter bed/sponge monitoring

Ecological filter bed/sponge monitoringyeswater environment restorationandSponge City ConstructionThe key technologies involved are water purification and rainwater management.

Ecological filter bed monitoring

Ecological filter bed passes throughbiofilm、plant root systemWhen natural processes purify water quality, monitoring should pay attention to the following indicators:

● Water quality parameters:COD、Total Phosphorus（TP）、Total Nitrogen（TN）、suspended solids(SS), etc., reflect the purification effect.

● Hydrological data:flow velocity、water levelEvaluate the operational status of the filter bed.

● Biological activity:microorganismTypes and quantities, throughmicroscopeormolecular biologyTechnical testing.

Sponge monitoring system

The construction of sponge cities requires monitoring the performance of rainwater management facilities, with core contents including:

Surface water environment:black and odorous water bodiesIndicators (such asdissolved oxygen、ammonia nitrogen）And conventional water quality parameters.

Initial rainwater:hardened ground(such as roofs, roads) rainwaterpollutant concentration(CODcr, TP, etc.).

■ Flood prone points:water level、trafficReal time monitoring to prevent waterlogging.

Sponge facilities:permeable pavement、bioretention zoneWaiting for facilitieswater dischargeandwater qualityOnline monitoring.

Ecological filter bed/sponge monitoring-Workflow diagram: