The invention relates to a hydrolysis acidification dephosphorization method for wastewater, which uses sea waste shells and iron filings as the filler of an acidification reactor to treat phosphorus containing wastewater. The total phosphorus concentration wastewater was 6 + 2mg/L, pH = 3.5 ~ 6.5, the weight of the shell and the iron ratio is 1: 0.2 to 0.4, which will be mixed into the reactor, the reactor for treatment of wastewater containing phosphorus added in the shell weight of 3.8 to 4 times, the hydraulic retention time is 6 ~ 48h. The removal rate of TP from phosphorus wastewater is 40 ~ 97%, especially the pH value of phosphorus wastewater is 3.5 ~ 5.5, the weight ratio of shell to iron is 1 to 0.2 to 0.4, and the effect of 12h treatment is good. The removal rate of TP from phosphorus wastewater was 90 ~ 97%, or even > 97%. Phosphorus removal process is advanced, reasonable and practical. Its theoretical basis is sufficient and the effect is obvious. The raw material is easy to obtain and the price is low, and the waste is treated with waste, thus effectively reducing the investment and operating cost of the wastewater treatment plant.
【技术实现步骤摘要】
本专利技术属于废水处理的
，涉及废水中用化学方法去除磷的技术。同时本专利技术涉及海产品废弃物的处理和利用。
技术介绍
由于城市化进程的加快和社会主义新农村建设，考虑现状废水量、废水增量和建制镇废水量，2010年废水排放总量为1050亿m3/a，城市废水处理率要达到50%，则需增加 500亿m7a(1.4亿m3/d天)的处理规模。达到50%的废水处理率，按静态投资(考虑配套管网)处理每立方米废水投资为2000-3000元，则需投资3000-4000亿元。而60%的新增加水量又来源于村镇废水的排放。鉴于我国农村的经济状况，投资并运营废水处理难度很大，因此需要开发适合村镇的节能型废水处理技术。近年来废水水解酸化预处理技术得到广泛的关注，因其低能耗、水力停留时间短并能大幅降低后续处理负荷，无疑是一种可行的原位废水处理技术选择。为提高水解酸化处理的效果，通常在酸化反应器中投加一些填料。污术处理用的填料大体上可分为硬性填料、软性填料、半软性填料，组台型填料和新型填料五大类。但无论那种填料，其作用是附着更多的生物膜，提高有机物降解或转化效率。但废水水解酸化预处理阶段基本...
【技术保护点】
１．一种废水水解酸化除磷方法，其特征在于具体处理步骤为：（１）将钙质贝壳洗净打碎，碎块最大处为１±０．２ｃｍ；（２）将碎铁屑洗净待用；（３）废水总磷浓度为６±２ｍｇ／Ｌ，ｐＨ值为３．５～６．５；（４）贝壳与铁屑之重量比为１∶０．２～０．４，将其混合后放入处理容器中；（５）反应器中加入贝壳重量３．８～４．０倍的含磷废水进行处理，含磷废水水停留时间为６～４８ｈ。
【技术特征摘要】
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