Essays about: "nitrates"

Showing result 1 - 5 of 18 essays containing the word nitrates.

  1. 1. An implementation of an autonomous IoT system for real-time water quality monitoring with 4G and satellite connection : CatFish - Embedded systems

    University essay from Högskolan i Halmstad/Akademin för informationsteknologi

    Author : Johan Elfing; Daniel Persson; [2022]
    Keywords : CatFish; Embedded System;

    Abstract : This thesis is about implementing an Internet of Things system for measuring water quality in rivers and other aquatic environments with an autonomous water drone, where the data from various components are collected and sent wirelessly to the database in real-time. A Raspberry Pi is connected to the internet through a 4G modem and a wireless satellite communication connection called RockBlock for emergency calls and notifications. READ MORE

  3. 2. Removal of pharmaceutical residues from wastewater by oxidation with ozone

    University essay from KTH/Resursåtervinning

    Author : Frida Söderström; [2021]
    Keywords : ozonation; adsorption; pollutants; pharmaceuticals; wastewater; ozonering; adsorption; föroreningar; läkemedel; vattenrening;

    Abstract : Avloppsreningsanläggningar är idag utformade för att rena bort föroreningar i form av organiskt material, suspenderade fasta ämnen och växtnäringsämnen (exempelvis fosfater och nitrater). Myndighet i Sverige har satt upp restriktioner och lagar gällande hur mycket av de olika föroreningarna som det är okej att utgående vatten innehåller. READ MORE

  4. 3. Identifying factors that correlate with Enhanced Biological Phosphorus Removal upsets at Lundåkraverket

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Rounak Niranjan; [2021]
    Keywords : Enhanced biological phosphorus removal; polyphosphate accumulating organisms; glycogen accumulating organisms; sludge content in aeration basin; nitrates in aeration basin; pH of incoming water; principal component analysis; pairwise correlations; inhibition factors;

    Abstract : The Enhanced Biological Phosphorus Removal (EBPR) process is characterized as the most sustainable process to remove phosphorus from wastewater albeit with high variability in performance efficiency. Thus, unpredictable upsets in the EBPR system is the norm across several wastewater treatment plants throughout Sweden, forcing the hand of the operators to dose higher volume of chemicals to reach the effluent requirements. READ MORE

  5. 4. Olika oorganiska kvävekällors effekt på blåbärsplantors tillväxt

    University essay from SLU/Dept. of Biosystems and Technology (from 130101)

    Author : Ella Lynander; [2021]
    Keywords : kväve; ammonium; nitrat; saltstress; ledningstal; blåbär; vaccinium; tillväxt; nitrogen; ammonium; nitrate; salt stress; conductivity; blueberry; growth;

    Abstract : Blåbärsproduktion har ökat i Sverige under 2010-talet, och av de många olika arter av blåbär som finns är det främst Vaccinium corymbosum som odlas. Odlingen kräver näringstillförsel, där kvävet har en viktig roll att spela. READ MORE

  6. 5. Mapping spontaneous biological phosphorus removal in a membrane bioreactor process without the anaerobic condition : Investigating the effect of alternative external carbon sources

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Ross Roberts; [2020]
    Keywords : enhanced biological phosphorus removal; PAO; anoxic; carbon source; ethanol; ORP;

    Abstract : Phosphorus removal in wastewater treatment is commonly achieved by chemical precipitation, enhanced biological phosphorus removal (EBPR) or a simultaneous combination of the two. A defined anaerobic condition is widely regarded as the critical element to sustain EBPR. However, this study demonstrates that EBPR is indeed occurring in a 4. READ MORE