diff --git a/docs/technical_reference/unit_models/zero_order_unit_models/index.rst b/docs/technical_reference/unit_models/zero_order_unit_models/index.rst
index c526deb00c..93d8d69a11 100644
--- a/docs/technical_reference/unit_models/zero_order_unit_models/index.rst
+++ b/docs/technical_reference/unit_models/zero_order_unit_models/index.rst
@@ -8,26 +8,18 @@ The zero-order models rely on default model parameter values specified in YAML f
    aeration_basin_zo
    air_flotation_zo
    anaerobic_digestion_oxidation_zo
-   anaerobic_digestion_reactive_zo
-   anaerobic_mbr_mec_zo
-   autothermal_hydrothermal_liquefaction_zo
    backwash_solids_handling_zo
    bio_active_filtration_zo
    bioreactor_zo
    blending_reservoir_zo
    brine_concentrator_zo
    buffer_tank_zo
-   CANDOP_zo
    cartridge_filtration_zo
-   centrifuge_zo
    chemical_addition_zo
    chlorination_zo
    clarifier_zo
-   cloth_media_filtration_zo
    co2_addition_zo
    coag_and_floc_zo
-   cofermentation_zo
-   constructed_wetlands_zo
    conventional_activated_sludge_zo
    cooling_supply_zo
    cooling_tower_zo
@@ -46,21 +38,14 @@ The zero-order models rely on default model parameter values specified in YAML f
    filter_press_zo
    fixed_bed_zo
    gac_zo
-   gas_sparged_membrane_zo
-   hrcs_zo
-   hydrothermal_gasification_zo
    injection_well_disposal_zo
    intrusion_mitigation_zo
    ion_exchange_zo
    iron_and_manganese_removal_zo
    landfill_zo
    mabr_zo
-   magprex_zo
    mbr_zo
    media_filtration_zo
-   membrane_evaporator_zo
-   metab_zo
-   microbial_battery_zo
    microfiltration_zo
    microscreen_filtration_zo
    municipal_drinking_zo
@@ -68,8 +53,6 @@ The zero-order models rely on default model parameter values specified in YAML f
    nanofiltration_zo
    ozone_aop_zo
    ozone_zo
-   peracetic_acid_disinfection_zo
-   photothermal_membrane_zo
    primary_separator_zo
    pump_electricity_zo
    pump_zo
@@ -81,9 +64,6 @@ The zero-order models rely on default model parameter values specified in YAML f
    smp_zo
    static_mixer_zo
    storage_tank_zo
-   struvite_classifier_zo
-   suboxic_activated_sludge_process_zo
-   supercritical_salt_precipitation_zo
    surface_discharge_zo
    sw_onshore_intake_zo
    tramp_oil_tank_zo
@@ -91,7 +71,6 @@ The zero-order models rely on default model parameter values specified in YAML f
    ultra_filtration_zo
    uv_aop_zo
    uv_zo
-   vfa_recovery_zo
    waiv_zo
    walnut_shell_filter_zo
    water_pumping_station_zo