Enhancing pollutant removal and biomass production from hydrothermal liquification wastewater (HTLWW) through microalgal-bacterial systems are two crucial steps to guarantee high operation efficiency in the Environment-Enhancing Energy paradigm, which can realize energy production and environmental protection. However, the toxicity of HTLWW limits microalgal-bacterial growth. In this work, zeolite and granular-activated carbon (GAC) were used to reduce the toxicity of HTLWW. The results showed that adding adsorbents to a microalgal-bacterial system efficiently improved pollutant removal and biomass accumulation. GAC and zeolite improved microalgal growth and total suspended biomass (TSB) accumulation, respectively. The combination of zeolite and GAC can maximize the wastewater treatment efficiency while ensuring biomass yield. In adsorption experiments, the soluble chemical oxygen demand (SCOD) and ammonium (NH₄⁺) removal reached 90.0 and 85.0% with the addition of 5 g L⁻¹ GAC and 100 g L⁻¹ zeolite, respectively. In sequencing batch tests, both SCOD and NH₄⁺ removal was higher in all adsorbent addition groups. The highest TSB was 1218 ± 304 mg L⁻¹ in the zeolite addition group, which was 35.9% higher than that in the control group. In continuous tests, the combination of adsorbents greatly improved pollutants removal. SCOD removal, NH₄⁺ removal, and TSB of the GAC + zeolite group were 18.1, 121.5, and 29.9% higher than the control group, respectively. In addition, component analysis showed that most of the nitrogenous organic compounds and benzene derivatives in HTLWW were removed by GAC, reducing the amount of toxic substances and consequently enhancing the biodegradability of HTLWW.

通过微藻细菌系统提高热液化废水（HTLWW）的污染物去除和生物质生产是确保环境增强能源范例中高运行效率的两个关键步骤，可以实现能源生产和环境保护。但是，HTLWW的毒性限制了微藻细菌的生长。在这项工作中，使用沸石和颗粒活性炭（GAC）来降低HTLWW的毒性。结果表明，向微藻-细菌系统中添加吸附剂可有效改善污染物的去除和生物量的积累。GAC和沸石分别改善了微藻生长和总悬浮生物量（TSB）积累。沸石和GAC的结合可以最大程度地提高废水处理效率，同时确保生物量的产生。₄ ⁺）的去除用加入5克L-达到90.0和85.0％^-1 GAC和100克L- ^-1分别沸石，。在顺序批处理测试中，所有吸附剂添加组的SCOD和NH ₄ ⁺去除率均较高。沸石添加组的最高TSB为1218±304mg L ^-1，比对照组高35.9％。在连续测试中，吸附剂的组合大大改善了污染物的去除。去除SCOD，NH ₄ ⁺GAC +沸石组的去除率和TSB分别比对照组高18.1％，121.5和29.9％。此外，成分分析表明，GAC除去了HTLWW中的大多数含氮有机化合物和苯衍生物，从而减少了有毒物质的含​​量，从而提高了HTLWW的生物降解性。