Sponge city is a new concept of municipal stormwater management Regenerative, Sustainable, wetland wastewater treatment plant retaining dam tree lake lawn urban community river green,eco, resilient, low-impact, future proofing, zero-carbon, When it rains. absorb,permeate. treat,store up, drain away If necessary,the stored water can be released
Sponge city is a new concept of municipal stormwater management Regenerative, Sustainable, green, eco, resilient, low-impact, future proofing, zero-carbon
The Sponge City indicates a particular type of city that does not act like an impermeable system not allowing any water to filter through the ground,but, more like a sponge,actually absorbs the rain water,which is then naturally filtered by the soil and allowed to reach into the urban aquifers.This allows for the extraction of water from the ground through urban or peri-urban wells.This water can be easily treated and used for the city water supply
• The Sponge City indicates a particular type of city that does not act like an impermeable system not allowing any water to filter through the ground, but, more like a sponge, actually absorbs the rain water, which is then naturally filtered by the soil and allowed to reach into the urban aquifers. This allows for the extraction of water from the ground through urban or peri-urban wells. This water can be easily treated and used for the city water supply
Implication of sponge city To take "landscape,forest,field and lake"as a life community and a complete system control runoff,recover original hydrological features and manage water resource ●Come down with the sustainable stormwater management in developed countries Thinking Sustainable Quantity plus stormwater Grey Quality management Quality Control control BMPs,LID,GI Green Fast Discharge SUDS WSUD
⚫ To take “landscape, forest, field and lake” as a life community and a complete system control runoff, recover original hydrological features and manage water resource ⚫ Come down with the sustainable stormwater management in developed countries Implication of sponge city Fast Discharge Quality control Quantity plus Quality Control Sustainable stormwater management BMPs, LID, GI SUDS WSUD Thinking Grey Green
Stormwater Philosophy Old:Make it go as far New:Slow it down,clean it away as possible as up,soak it in fast as possible Control peak flows to maintain predevelopment conditions Control peak flows and 80% no water quality TSS removal
Stormwater Philosophy Old: Make it go as far away as possible as fast as possible New: Slow it down, clean it up, soak it in Control peak flows to maintain predevelopment conditions – no water quality Control peak flows and 80% TSS removal
Municipal Stormwater Management Paradigms Early Stormwater Paradigms √Run it in ditches √Run it in pipes Run it in stormwater pipes Keep it from storewater pipes Well,just do not cause flooding
Municipal Stormwater Management Paradigms • Early Stormwater Paradigms ✓ Run it in ditches ✓ Run it in pipes ✓ Run it in stormwater pipes ✓ Keep it from storewater pipes ✓ Well, just do not cause flooding