Technical Research Of Separation Of Rainwater And Sewage In Drainage System Reform In Old Town Of Guangzhou

At the coming of Asian Game, the government put separate system into practice in old town of Guangzhou. This thesis approach feasibility study of separate system in old town of Guangzhou from present condition of Guangzhou sewage system. It analyses and researches technical innovation of separate system and new material, such as the improvement of combine system, the improvement of housing estate and building sewage system, the new type of tube, well and water permeable brick.1. In separate system planning aspect, this thesis researches and contrasts separate system advantages and disadvantages with combine system and mixed system, and establish feasibility of separate system in old town of Guangzhou. It suggests open up a new sustained sewage system for the prospective study, strategic policy, measures to suit local conditions, which can combine sewage system with the use of rainfall resource, the control of rainfall pollution, the reduce of surface runoff and the protection of ecological equilibrium.2. In separate system techniques aspect,This thesis adopts statistical data and chart, contrasts excavation technology with non- excavation technology, the study of existing combine system converted into a rain system, the study of reconstructions in housing estate and building sewage system. Under the compared with traditional technology, it points the greatest extent highlights of advantages and the benefit to society, economy and environment.3. In material aspect,This thesis adopts new materials, such as plastic drain-pipe, plastic well, water permeable brick, steel squares cap of ditch. Which preeminent above all traditional sewage material in landscape engineering, environmental protection, energy conservation, shock resistance, service life and recycle. Get authoritative recognition of the country, can be used in Guangzhou to promote.