Technology Introduction

The construction and operation o黃工f rural sewage treatment terminal we冷暗re restricted and influenced by many 體女factors, such as local charact市討eristics. So, the optimization of th白師e treatment process is particularly能新 important for the investment and o業兒peration management of the facil藍話ities. Using the combination of "a大電naerobic pond and constructed we要雨tland", the effluent can reach the lev員著el A,class one standard of pollutant河現s for municipal wastewater trea可內tment plant (GB18918-2002) 白市

The solids, macromolecule a紅訊nd the non-biodegradable organic ma化又tter could be easily degraded into樂到 degradable micromolecule organi好看c matter by hydrolysis and acidific有站ation of anaerobic microorganism間議,which can make the wastewater be t要事reated with less energy consumpt微我ion and shorter residence time in the s我厭ubsequent treatment.

Constructed wetland which is mainly th話雪e construction of wetland is ba你錯sed on the simulation of natur報土al wetland,which makes use of the煙有 synergy between plant, substrate an民報d microorganism in natural ecosystem t她這o achieve the purification of w用影ater quality. The wetland system 服為made up of the matrix / filler (gr鄉不avel, etc.) grows plants with goo年錯d performance, high survival rate, s你場trong water resistance, long gr河笑owth cycle, beauty and economic老煙 value on its surface,all of this co著員nstitute a unique animal and plant ecos數筆ystem . The water is purified by f農都iltration, adsorption, precipita朋車tion, ion exchange, plant uptake and mi在制crobial decomposition when water男大 passes through the system.

Process Flow Chart

The process flow chart of "Anaer廠黑obic pond + constructed wetland" is市河 as follows:

Treatment Effects

The operation expense and 公歌cost of "anaerobic pond+ constructed 化但wetland" treatment system are lower照子, and the system can efficiently 能跳remove the pollutant in wastew海影ater, such as TN, TP and COD, 自北which ensure the water quality stabil商答ity, and can reach the level A,class o我鐵ne standard of pollutants for mu大刀nicipal wastewater treatment plant 說裡(GB18918-2002).

Advantages

This technology is suitable for 文地the sewage in the small towns 女河and rural areas which are away f愛亮rom the urban sewage pipe network, capi小有tal ,energy shortage and lack of t可看echnical talents. Meanwhile, with i對街ts significant ecological environme上鐘nt benefits and ornamental value,我技 sewage treatment can unify the orn木木amental value, entertainment and water坐費 quality purification .

Application Case

One of the domestic sewage treatment 低作project in Zhejiang Province

Construction Time: 2015

Nature of the sewage: Rural do看通mestic sewage

Scale: 20 administrative villages 兒吃

Main process: anaerobic pond + 動老constructed wetland

Requirement: level A,class店匠 one standard of pollutants fo物麗r municipal wastewater treatment plant 自小(GB18918-2002)