Patent ID: 8647566
Filing Date: 2014-02-11
Classification: B09C,B63H,C02F

Abstract:
1. A method to deodorize sediment in-situ using a deodorant in the form of a calcium nitrate solution having a mass percentage of 14.32%-52.49%, or a mass percentage of 36.34%-45%, and specifically, the method comprises the following steps: (a) determining acid volatile sulfides (AVS) content and total organic carbon (TOC) content in sediments under water, and then calculating a dosage of the calcium nitrate solution required; (b) ploughing a treatment river-bed or sea-bed by injection tines of a bioremediator; and at the same time, injecting the calcium nitrate solution into the sediment; and after the bioremediator has navigated forward, the trench sides of furrows ploughed will collapse and encapsulate the calcium nitrate solution within the sediment for subsequent biological treatment process.